[AltJIT] Adds AltJIT CLI tool to enable JIT on devices running iOS 17+

Commands: altjit enable [app/pid] --udid [udid] * Enables JIT for given app/process altjit mount --udid [udid] * Mounts personalized developer disk
2026-02-08 22:33:26 +01:00 · 2023-09-07 18:00:53 -05:00
parent f83303a6b7
commit a7b28d5027
19 changed files with 1539 additions and 1 deletions
--- a/AltJIT/AltJIT-Bridging-Header.h
+++ b/AltJIT/AltJIT-Bridging-Header.h
@@ -0,0 +1,9 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+#import "ALTErrorKeys.h"
+
+// Shared
+#import "ALTWrappedError.h"
+#import "NSError+ALTServerError.h"
--- a/AltJIT/AltJIT.swift
+++ b/AltJIT/AltJIT.swift
@@ -0,0 +1,18 @@
+//
+//  AltJIT.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 8/29/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import OSLog
+import ArgumentParser
+
+@main
+struct AltJIT: AsyncParsableCommand
+{
+    static let configuration = CommandConfiguration(commandName: "altjit", 
+                                                    abstract: "Enable JIT for sideloaded apps.",
+                                                    subcommands: [EnableJIT.self, MountDisk.self])
+}
--- a/AltJIT/Commands/EnableJIT.swift
+++ b/AltJIT/Commands/EnableJIT.swift
@@ -0,0 +1,452 @@
+//
+//  EnableJIT.swift
+//  AltPackage
+//
+//  Created by Riley Testut on 8/29/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import OSLog
+import RegexBuilder
+
+import ArgumentParser
+
+struct EnableJIT: PythonCommand
+{
+    static let configuration = CommandConfiguration(commandName: "enable", abstract: "Enable JIT for a specific app on your device.")
+    
+    @Argument(help: "The name or PID of the app to enable JIT for.", transform: AppProcess.init)
+    var process: AppProcess
+    
+    @Option(help: "Your iOS device's UDID.")
+    var udid: String
+    
+    // PythonCommand
+    var pythonPath: String?
+    
+    mutating func run() async throws
+    {
+        // Use local variables to fix "escaping autoclosure captures mutating self parameter" compiler error.
+        let process = self.process
+        let udid = self.udid        
+        
+        do
+        {
+            do
+            {
+                Logger.main.info("Enabling JIT for \(process, privacy: .private(mask: .hash)) on device \(udid, privacy: .private(mask: .hash))...")
+                
+                try await self.prepare()
+                
+                let rsdTunnel = try await self.startRSDTunnel()
+                defer { rsdTunnel.process.terminate() }
+                print("Connected to device \(self.udid)!", rsdTunnel)
+                
+                let port = try await self.startDebugServer(rsdTunnel: rsdTunnel)
+                print("Started debugserver on port \(port).")
+                
+                print("Attaching debugger...")
+                let lldb = try await self.attachDebugger(ipAddress: rsdTunnel.ipAddress, port: port)
+                defer { lldb.terminate() }
+                print("Attached debugger to \(process).")
+                
+                try await self.detachDebugger(lldb)
+                print("Detached debugger from \(process).")
+                
+                print("✅ Successfully enabled JIT for \(process) on device \(udid)!")
+            }
+            catch let error as ProcessError
+            {
+                if let output = error.output
+                {
+                    print(output)
+                }
+                
+                throw error
+            }
+        }
+        catch
+        {
+            print("❌ Unable to enable JIT for \(process) on device \(udid).")
+            print(error.localizedDescription)
+            
+            Logger.main.error("Failed to enable JIT for \(process, privacy: .private(mask: .hash)) on device \(udid, privacy: .private(mask: .hash)). \(error, privacy: .public)")
+            
+            throw ExitCode.failure
+        }
+    }
+}
+
+private extension EnableJIT
+{
+    func startRSDTunnel() async throws -> RemoteServiceDiscoveryTunnel
+    {
+        do
+        {
+            Logger.main.info("Starting RSD tunnel...")
+            
+            let process = try Process.launch(.python3, arguments: ["-u", "-m", "pymobiledevice3", "remote", "start-quic-tunnel", "--udid", self.udid], environment: self.processEnvironment)
+            
+            do
+            {
+                let rsdTunnel = try await withTimeout(seconds: 20) {
+                    let regex = Regex {
+                        "--rsd"
+                        
+                        OneOrMore(.whitespace)
+                        
+                        Capture {
+                            OneOrMore(.anyGraphemeCluster)
+                        }
+                        
+                        OneOrMore(.whitespace)
+                        
+                        TryCapture {
+                            OneOrMore(.digit)
+                        } transform: { match in
+                            Int(match)
+                        }
+                    }
+                    
+                    for try await line in process.outputLines
+                    {
+                        if let match = line.firstMatch(of: regex)
+                        {
+                            let rsdTunnel = RemoteServiceDiscoveryTunnel(ipAddress: String(match.1), port: match.2, process: process)
+                            return rsdTunnel
+                        }
+                    }
+                    
+                    throw ProcessError.unexpectedOutput(executableURL: .python3, output: process.output)
+                }
+                
+                // MUST close standardOutput in order to stream output later.
+                process.stopOutput()
+                
+                return rsdTunnel
+            }
+            catch is TimedOutError
+            {
+                process.terminate()
+                
+                let error = ProcessError.timedOut(executableURL: .python3, output: process.output)
+                throw error
+            }
+            catch
+            {
+                process.terminate()
+                throw error
+            }
+        }
+        catch let error as NSError
+        {
+            let localizedFailure = NSLocalizedString("Could not connect to device \(self.udid).", comment: "")
+            throw error.withLocalizedFailure(localizedFailure)
+        }
+    }
+    
+    func startDebugServer(rsdTunnel: RemoteServiceDiscoveryTunnel) async throws -> Int
+    {
+        do
+        {
+            Logger.main.info("Starting debugserver...")
+            
+            return try await withTimeout(seconds: 10) {
+                let arguments = ["-u", "-m", "pymobiledevice3", "developer", "debugserver", "start-server"] + rsdTunnel.commandArguments
+                
+                let output = try await Process.launchAndWait(.python3, arguments: arguments, environment: self.processEnvironment)
+                
+                let port = Reference(Int.self)
+                let regex = Regex {
+                    "connect://"
+                    
+                    OneOrMore(.anyGraphemeCluster, .eager)
+                    
+                    ":"
+                    
+                    TryCapture(as: port) {
+                        OneOrMore(.digit)
+                    } transform: { match in
+                        Int(match)
+                    }
+                }
+                
+                if let match = output.firstMatch(of: regex)
+                {
+                    return match[port]
+                }
+                
+                throw ProcessError.unexpectedOutput(executableURL: .python3, output: output)
+            }
+        }
+        catch let error as NSError
+        {
+            let localizedFailure = NSLocalizedString("Could not start debugserver on device \(self.udid).", comment: "")
+            throw error.withLocalizedFailure(localizedFailure)
+        }
+    }
+    
+    func attachDebugger(ipAddress: String, port: Int) async throws -> Process
+    {
+        do
+        {
+            Logger.main.info("Attaching debugger...")
+            
+            let processID: Int
+            
+            switch self.process
+            {
+            case .pid(let pid): processID = pid
+            case .name(let name):
+                guard let pid = try await self.getPID(for: name) else { throw JITError.processNotRunning(self.process) }
+                processID = pid
+            }
+            
+            let process = try Process.launch(.lldb, environment: self.processEnvironment)
+            
+            do
+            {
+                try await withThrowingTaskGroup(of: Void.self) { taskGroup in
+                    
+    //                // Throw error if program terminates.
+    //                taskGroup.addTask {
+    //                    try await withCheckedThrowingContinuation { continuation in
+    //                        process.terminationHandler = { process in
+    //                            Task {
+    //                                // Should NEVER be called unless an error occurs.
+    //                                continuation.resume(throwing: ProcessError.terminated(executableURL: .lldb, exitCode: process.terminationStatus, output: process.output))
+    //                            }
+    //                        }
+    //                    }
+    //                }
+                    
+                    taskGroup.addTask {
+                        do
+                        {
+                            try await self.sendDebuggerCommand("platform select remote-ios", to: process, timeout: 5) {
+                                ChoiceOf {
+                                    "SDK Roots:"
+                                    "unable to locate SDK"
+                                }
+                            }
+                            
+                            let ipAddress = "[\(ipAddress)]"
+                            let connectCommand = "process connect connect://\(ipAddress):\(port)"
+                            try await self.sendDebuggerCommand(connectCommand, to: process, timeout: 10)
+                            
+                            try await self.sendDebuggerCommand("settings set target.memory-module-load-level minimal", to: process, timeout: 5)
+                            
+                            let attachCommand = "attach -p \(processID)"
+                            let failureMessage = "attach failed"
+                            let output = try await self.sendDebuggerCommand(attachCommand, to: process, timeout: 120) {
+                                
+                                ChoiceOf {
+                                    failureMessage
+                                    
+                                    Regex {
+                                        "Process "
+                                        OneOrMore(.digit)
+                                        " stopped"
+                                    }
+                                }
+                            }
+                            
+                            if output.contains(failureMessage)
+                            {
+                                throw ProcessError.failed(executableURL: .lldb, exitCode: -1, output: process.output)
+                            }
+                        }
+                        catch is TimedOutError
+                        {
+                            let error = ProcessError.timedOut(executableURL: .lldb, output: process.output)
+                            throw error
+                        }
+                    }
+                    
+                    // Wait until first child task returns
+                    _ = try await taskGroup.next()!
+                    
+                    // Cancel remaining tasks
+                    taskGroup.cancelAll()
+                }
+                
+                return process
+            }
+            catch
+            {
+                process.terminate()
+                throw error
+            }
+        }
+        catch let error as NSError
+        {
+            let localizedFailure = String(format: NSLocalizedString("Could not attach debugger to %@.", comment: ""), self.process.description)
+            throw error.withLocalizedFailure(localizedFailure)
+        }
+    }
+    
+    func detachDebugger(_ process: Process) async throws
+    {
+        do
+        {
+            Logger.main.info("Detaching debugger...")
+            
+            try await withThrowingTaskGroup(of: Void.self) { taskGroup in
+                
+//                // Throw error if program terminates.
+//                taskGroup.addTask {
+//                    try await withCheckedThrowingContinuation { continuation in
+//                        process.terminationHandler = { process in
+//                            if process.terminationStatus == 0
+//                            {
+//                                continuation.resume()
+//                            }
+//                            else
+//                            {
+//                                continuation.resume(throwing: ProcessError.terminated(executableURL: .lldb, exitCode: process.terminationStatus, output: process.output))
+//                            }
+//                        }
+//                    }
+//                }
+                
+                taskGroup.addTask {
+                    do
+                    {
+                        try await self.sendDebuggerCommand("c", to: process, timeout: 10) {
+                            "Process "
+                            OneOrMore(.digit)
+                            " resuming"
+                        }
+                        
+                        try await self.sendDebuggerCommand("detach", to: process, timeout: 10) {
+                            "Process "
+                            OneOrMore(.digit)
+                            " detached"
+                        }
+                    }
+                    catch is TimedOutError
+                    {
+                        let error = ProcessError.timedOut(executableURL: .lldb, output: process.output)
+                        throw error
+                    }
+                }
+                
+                // Wait until first child task returns
+                _ = try await taskGroup.next()!
+                
+                // Cancel remaining tasks
+                taskGroup.cancelAll()
+            }
+        }
+        catch let error as NSError
+        {
+            let localizedFailure = NSLocalizedString("Could not detach debugger from \(self.process).", comment: "")
+            throw error.withLocalizedFailure(localizedFailure)
+        }
+    }
+}
+
+private extension EnableJIT
+{
+    func getPID(for name: String) async throws -> Int?
+    {
+        Logger.main.info("Retrieving PID for \(name, privacy: .private(mask: .hash))...")
+        
+        let arguments = ["-m", "pymobiledevice3", "processes", "pgrep", name, "--udid", self.udid]
+        let output = try await Process.launchAndWait(.python3, arguments: arguments, environment: self.processEnvironment)
+        
+        let regex = Regex {
+            "INFO"
+            
+            OneOrMore(.whitespace)
+            
+            TryCapture {
+                OneOrMore(.digit)
+            } transform: { match in
+                Int(match)
+            }
+            
+            OneOrMore(.whitespace)
+            
+            name
+        }
+        
+        if let match = output.firstMatch(of: regex)
+        {
+            Logger.main.info("\(name, privacy: .private(mask: .hash)) PID is \(match.1)")
+            return match.1
+        }
+        
+        return nil
+    }
+    
+    @discardableResult
+    func sendDebuggerCommand(_ command: String, to process: Process, timeout: TimeInterval,
+                             @RegexComponentBuilder regex: @escaping () -> (some RegexComponent<Substring>)? = { Optional<Regex<Substring>>.none }) async throws -> String
+    {
+        guard let inputPipe = process.standardInput as? Pipe else { preconditionFailure("`process` must have a Pipe as its standardInput") }
+        defer {
+            inputPipe.fileHandleForWriting.writeabilityHandler = nil
+        }
+        
+        let initialOutput = process.output
+        
+        let data = (command + "\n").data(using: .utf8)! // Will always succeed.
+        Logger.main.info("Sending lldb command: \(command, privacy: .public)")
+        
+        let output = try await withTimeout(seconds: timeout) {
+            // Wait until process is ready to receive input.
+            try await withCheckedThrowingContinuation { continuation in
+                inputPipe.fileHandleForWriting.writeabilityHandler = { fileHandle in
+                    inputPipe.fileHandleForWriting.writeabilityHandler = nil
+                    
+                    let result = Result { try fileHandle.write(contentsOf: data) }
+                    continuation.resume(with: result)
+                }
+            }
+            
+            // Wait until we receive at least one line of output.
+            for try await _ in process.outputLines
+            {
+                break
+            }
+            
+            // Keep waiting until output doesn't change.
+            // If regex is provided, we keep waiting until a match is found.
+            var previousOutput = process.output
+            while true
+            {
+                try await Task.sleep(for: .seconds(0.2))
+                
+                let output = process.output
+                if output == previousOutput
+                {
+                    guard let regex = regex() else {
+                        // No regex, so break as soon as output stops changing.
+                        break
+                    }
+                    
+                    if output.contains(regex)
+                    {
+                        // Found a match, so exit while loop.
+                        break
+                    }
+                    else
+                    {
+                        // Output hasn't changed, but regex does not match (yet).
+                        continue
+                    }
+                }
+                
+                previousOutput = output
+            }
+            
+            return previousOutput
+        }
+        
+        // Subtract initialOutput from output to get just this command's output.
+        let commandOutput = output.replacingOccurrences(of: initialOutput, with: "")
+        return commandOutput
+    }
+}
--- a/AltJIT/Commands/MountDisk.swift
+++ b/AltJIT/Commands/MountDisk.swift
@@ -0,0 +1,75 @@
+//
+//  MountDisk.swift
+//  AltPackage
+//
+//  Created by Riley Testut on 8/31/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import OSLog
+
+import ArgumentParser
+
+typealias MountError = MountErrorCode.Error
+enum MountErrorCode: Int, ALTErrorEnum
+{
+    case alreadyMounted
+    
+    var errorFailureReason: String {
+        switch self
+        {
+        case .alreadyMounted: return NSLocalizedString("A personalized Developer Disk is already mounted.", comment: "")
+        }
+    }
+}
+
+struct MountDisk: PythonCommand
+{
+    static let configuration = CommandConfiguration(commandName: "mount", abstract: "Mount a personalized developer disk image onto an iOS device.")
+    
+    @Option(help: "The iOS device's UDID.")
+    var udid: String
+    
+    // PythonCommand
+    var pythonPath: String?
+    
+    mutating func run() async throws
+    {
+        do
+        {
+            print("Mounting personalized developer disk...")
+            
+            try await self.prepare()
+            
+            let output = try await Process.launchAndWait(.python3, arguments: ["-m", "pymobiledevice3", "mounter", "auto-mount", "--udid", self.udid])
+            if !output.contains("DeveloperDiskImage")
+            {
+                throw ProcessError.unexpectedOutput(executableURL: .python3, output: output)
+            }
+            
+            if output.contains("already mounted")
+            {
+                throw MountError(.alreadyMounted)
+            }
+            
+            print("✅ Successfully mounted personalized Developer Disk!")
+        }
+        catch let error as MountError where error.code == .alreadyMounted
+        {
+            // Prepend ⚠️ since this is not really an error.
+            let localizedDescription = "⚠️ " + error.localizedDescription
+            print(localizedDescription)
+            
+            throw ExitCode.success
+        }
+        catch
+        {
+            // Output failure message first before error.
+            print("❌ Unable to mount personalized Developer Disk.")
+            print(error.localizedDescription)
+            
+            throw ExitCode.failure
+        }
+    }
+}
--- a/AltJIT/Extensions/Logger+AltJIT.swift
+++ b/AltJIT/Extensions/Logger+AltJIT.swift
@@ -0,0 +1,16 @@
+//
+//  Logger+AltJIT.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 8/29/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import OSLog
+
+public extension Logger
+{
+    static let altjitSubsystem = Bundle.main.bundleIdentifier!
+    
+    static let main = Logger(subsystem: altjitSubsystem, category: "AltJIT")
+}
--- a/AltJIT/Extensions/Task+Timeout.swift
+++ b/AltJIT/Extensions/Task+Timeout.swift
@@ -0,0 +1,57 @@
+//
+//  Task+Timeout.swift
+//  AltPackage
+//
+//  Created by Riley Testut on 8/31/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+//  Based heavily on https://forums.swift.org/t/running-an-async-task-with-a-timeout/49733/13
+//
+
+import Foundation
+
+struct TimedOutError: LocalizedError
+{
+    var duration: TimeInterval
+    
+    public var errorDescription: String? {
+        //TODO: Change pluralization for 1 second.
+        let errorDescription = String(format: NSLocalizedString("The task timed out after %@ seconds.", comment: ""), self.duration.formatted())
+        return errorDescription
+    }
+}
+
+///
+/// Execute an operation in the current task subject to a timeout.
+///
+/// - Parameters:
+///   - seconds: The duration in seconds `operation` is allowed to run before timing out.
+///   - operation: The async operation to perform.
+/// - Returns: Returns the result of `operation` if it completed in time.
+/// - Throws: Throws ``TimedOutError`` if the timeout expires before `operation` completes.
+///   If `operation` throws an error before the timeout expires, that error is propagated to the caller.
+func withTimeout<R>(seconds: TimeInterval, file: StaticString = #file, line: Int = #line, operation: @escaping @Sendable () async throws -> R) async throws -> R
+{
+    return try await withThrowingTaskGroup(of: R.self) { group in
+        let deadline = Date(timeIntervalSinceNow: seconds)
+
+        // Start actual work.
+        group.addTask {
+            return try await operation()
+        }
+        // Start timeout child task.
+        group.addTask {
+            let interval = deadline.timeIntervalSinceNow
+            if interval > 0 {
+                try await Task.sleep(for: .seconds(interval))
+            }
+            try Task.checkCancellation()
+            // We’ve reached the timeout.
+            throw TimedOutError(duration: seconds)
+        }
+        // First finished child task wins, cancel the other task.
+        let result = try await group.next()!
+        group.cancelAll()
+        return result
+    }
+}
--- a/AltJIT/Extensions/URL+Tools.swift
+++ b/AltJIT/Extensions/URL+Tools.swift
@@ -0,0 +1,15 @@
+//
+//  URL+Tools.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 9/3/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+extension URL
+{
+    static let python3 = URL(fileURLWithPath: "/usr/bin/python3")
+    static let lldb = URL(fileURLWithPath: "/usr/bin/lldb")
+}
--- a/AltJIT/Types/ALTErrorKeys.h
+++ b/AltJIT/Types/ALTErrorKeys.h
@@ -0,0 +1,14 @@
+//
+//  ALTErrorKeys.h
+//  AltJIT
+//
+//  Created by Riley Testut on 9/1/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+@import Foundation;
+
+// Can't import AltSign (for reasons), so re-declare these constants here instead.
+extern NSErrorUserInfoKey const ALTSourceFileErrorKey;
+extern NSErrorUserInfoKey const ALTSourceLineErrorKey;
+extern NSErrorUserInfoKey const ALTAppNameErrorKey;
--- a/AltJIT/Types/ALTErrorKeys.m
+++ b/AltJIT/Types/ALTErrorKeys.m
@@ -0,0 +1,13 @@
+//
+//  ALTErrorKeys.m
+//  AltJIT
+//
+//  Created by Riley Testut on 9/1/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+#import "ALTErrorKeys.h"
+
+NSErrorUserInfoKey const ALTSourceFileErrorKey = @"ALTSourceFile";
+NSErrorUserInfoKey const ALTSourceLineErrorKey = @"ALTSourceLine";
+NSErrorUserInfoKey const ALTAppNameErrorKey = @"appName";
--- a/AltJIT/Types/PythonCommand.swift
+++ b/AltJIT/Types/PythonCommand.swift
@@ -0,0 +1,58 @@
+//
+//  PythonCommand.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 9/6/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import ArgumentParser
+
+protocol PythonCommand: AsyncParsableCommand
+{
+    var pythonPath: String? { get set }
+}
+
+extension PythonCommand
+{
+    var processEnvironment: [String: String] {
+        var environment = ProcessInfo.processInfo.environment
+        
+        if let pythonPath
+        {
+            environment["PYTHONPATH"] = pythonPath
+        }
+        
+        return environment
+    }
+    
+    mutating func prepare() async throws
+    {
+        let pythonPath = try await self.readPythonPath()
+        self.pythonPath = pythonPath.path(percentEncoded: false)
+    }
+}
+
+private extension PythonCommand
+{
+    func readPythonPath() async throws -> URL
+    {
+        let processOutput: String
+        
+        do
+        {
+            processOutput = try await Process.launchAndWait(.python3, arguments: ["-m", "site", "--user-site"])
+        }
+        catch let error as ProcessError where error.exitCode == 2
+        {
+            // Ignore exit code 2.
+            guard let output = error.output else { throw error }
+            processOutput = output
+        }
+        
+        let sanitizedOutput = processOutput.trimmingCharacters(in: .whitespacesAndNewlines)
+        
+        let pythonURL = URL(filePath: sanitizedOutput)
+        return pythonURL
+    }
+}
--- a/AltJIT/Types/RemoteServiceDiscoveryTunnel.swift
+++ b/AltJIT/Types/RemoteServiceDiscoveryTunnel.swift
@@ -0,0 +1,41 @@
+//
+//  RemoteServiceDiscoveryTunnel.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 9/3/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+final class RemoteServiceDiscoveryTunnel
+{
+    let ipAddress: String
+    let port: Int
+    
+    let process: Process
+    
+    var commandArguments: [String] {
+        ["--rsd", self.ipAddress, String(self.port)]
+    }
+    
+    init(ipAddress: String, port: Int, process: Process)
+    {
+        self.ipAddress = ipAddress
+        self.port = port
+        
+        self.process = process
+    }
+    
+    deinit
+    {
+        self.process.terminate()
+    }
+}
+
+extension RemoteServiceDiscoveryTunnel: CustomStringConvertible
+{
+    var description: String {
+        "\(self.ipAddress) \(self.port)"
+    }
+}
--- a/AltStore.xcodeproj/project.pbxproj
+++ b/AltStore.xcodeproj/project.pbxproj
@@ -355,9 +355,12 @@
 		D51AD27F29356B7B00967AAA /* ALTWrappedError.m in Sources */ = {isa = PBXBuildFile; fileRef = D51AD27D29356B7B00967AAA /* ALTWrappedError.m */; };
 		D51AD28029356B8000967AAA /* ALTWrappedError.m in Sources */ = {isa = PBXBuildFile; fileRef = D51AD27D29356B7B00967AAA /* ALTWrappedError.m */; };
 		D52C08EE28AEC37A006C4AE5 /* AppVersion.swift in Sources */ = {isa = PBXBuildFile; fileRef = D52C08ED28AEC37A006C4AE5 /* AppVersion.swift */; };
+		D52DD35E2AAA89A600A7F2B6 /* AltSign-Dynamic in Frameworks */ = {isa = PBXBuildFile; productRef = D52DD35D2AAA89A600A7F2B6 /* AltSign-Dynamic */; };
+		D52DD35F2AAA89A700A7F2B6 /* AltSign-Dynamic in Embed Frameworks */ = {isa = PBXBuildFile; productRef = D52DD35D2AAA89A600A7F2B6 /* AltSign-Dynamic */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		D52EF2BE2A0594550096C377 /* AppDetailCollectionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D52EF2BD2A0594550096C377 /* AppDetailCollectionViewController.swift */; };
 		D533E8B72727841800A9B5DD /* libAppleArchive.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = D533E8B62727841800A9B5DD /* libAppleArchive.tbd */; settings = {ATTRIBUTES = (Weak, ); }; };
 		D533E8BE2727BBF800A9B5DD /* libcurl.a in Frameworks */ = {isa = PBXBuildFile; fileRef = D533E8BD2727BBF800A9B5DD /* libcurl.a */; };
+		D537C85B2AA9507A009A1E08 /* libcorecrypto.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = D537C85A2AA95066009A1E08 /* libcorecrypto.tbd */; platformFilters = (macos, ); };
 		D53D84022A2158FC00543C3B /* Permissions.plist in Resources */ = {isa = PBXBuildFile; fileRef = D53D84012A2158FC00543C3B /* Permissions.plist */; };
 		D54058B92A1D6269008CCC58 /* AppPermissionProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = D54058B82A1D6269008CCC58 /* AppPermissionProtocol.swift */; };
 		D54058BB2A1D8FE3008CCC58 /* UIColor+AltStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = D54058BA2A1D8FE3008CCC58 /* UIColor+AltStore.swift */; };
@@ -392,7 +395,15 @@
 		D5935AED29C39DE300C157EF /* SourceDetailsComponents.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5935AEC29C39DE300C157EF /* SourceDetailsComponents.swift */; };
 		D5935AEF29C3B23600C157EF /* Sources.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D5935AEE29C3B23600C157EF /* Sources.storyboard */; };
 		D593F1942717749A006E82DE /* PatchAppOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = D593F1932717749A006E82DE /* PatchAppOperation.swift */; };
+		D59A6B7B2AA91B8E00F61259 /* PythonCommand.swift in Sources */ = {isa = PBXBuildFile; fileRef = D59A6B7A2AA91B8E00F61259 /* PythonCommand.swift */; };
+		D59A6B7F2AA9226C00F61259 /* AppProcess.swift in Sources */ = {isa = PBXBuildFile; fileRef = D59A6B7D2AA9226C00F61259 /* AppProcess.swift */; };
+		D59A6B822AA92D1C00F61259 /* Process+Conveniences.swift in Sources */ = {isa = PBXBuildFile; fileRef = D59A6B802AA92D1C00F61259 /* Process+Conveniences.swift */; };
+		D59A6B842AA932F700F61259 /* Logger+AltServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = D59A6B832AA932F700F61259 /* Logger+AltServer.swift */; };
 		D5A0537329B91DB400997551 /* SourceDetailContentViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5A0537229B91DB400997551 /* SourceDetailContentViewController.swift */; };
+		D5A1D2E42AA50EB60066CACC /* JITError.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5A1D2E32AA50EB60066CACC /* JITError.swift */; };
+		D5A1D2E92AA512940066CACC /* RemoteServiceDiscoveryTunnel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5A1D2E82AA512940066CACC /* RemoteServiceDiscoveryTunnel.swift */; };
+		D5A1D2EB2AA513410066CACC /* URL+Tools.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5A1D2EA2AA513410066CACC /* URL+Tools.swift */; };
+		D5A1D2EC2AA51D490066CACC /* ProcessError.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A1B2AA284ED00EF863D /* ProcessError.swift */; };
 		D5A2193429B14F94002229FC /* DeprecatedAPIs.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5A2193329B14F94002229FC /* DeprecatedAPIs.swift */; };
 		D5ACE84528E3B8450021CAB9 /* ClearAppCacheOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5ACE84428E3B8450021CAB9 /* ClearAppCacheOperation.swift */; };
 		D5CA0C4B280E141900469595 /* ManagedPatron.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5CA0C4A280E141900469595 /* ManagedPatron.swift */; };
@@ -414,6 +425,18 @@
 		D5F99A1828D11DB500476A16 /* AltStore10ToAltStore11.xcmappingmodel in Sources */ = {isa = PBXBuildFile; fileRef = D5F99A1728D11DB500476A16 /* AltStore10ToAltStore11.xcmappingmodel */; };
 		D5F99A1A28D12B1400476A16 /* StoreApp10ToStoreApp11Policy.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5F99A1928D12B1400476A16 /* StoreApp10ToStoreApp11Policy.swift */; };
 		D5FB7A0E2AA25A4E00EF863D /* Previews.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D5FB7A0D2AA25A4E00EF863D /* Previews.xcassets */; };
+		D5FB7A212AA284ED00EF863D /* EnableJIT.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A1A2AA284ED00EF863D /* EnableJIT.swift */; };
+		D5FB7A242AA284ED00EF863D /* Logger+AltJIT.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A1D2AA284ED00EF863D /* Logger+AltJIT.swift */; };
+		D5FB7A252AA284ED00EF863D /* AltJIT.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A1E2AA284ED00EF863D /* AltJIT.swift */; };
+		D5FB7A262AA284ED00EF863D /* MountDisk.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A1F2AA284ED00EF863D /* MountDisk.swift */; };
+		D5FB7A272AA284ED00EF863D /* Task+Timeout.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A202AA284ED00EF863D /* Task+Timeout.swift */; };
+		D5FB7A2A2AA2854100EF863D /* ALTLocalizedError.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5DB145828F9DC1000A8F606 /* ALTLocalizedError.swift */; };
+		D5FB7A2B2AA2854400EF863D /* UserInfoValue.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5189C002A01BC6800F44625 /* UserInfoValue.swift */; };
+		D5FB7A2E2AA2859400EF863D /* ArgumentParser in Frameworks */ = {isa = PBXBuildFile; productRef = D5FB7A2D2AA2859400EF863D /* ArgumentParser */; };
+		D5FB7A312AA28A2900EF863D /* NSError+AltStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF6C336124197D700034FD24 /* NSError+AltStore.swift */; };
+		D5FB7A322AA28A4000EF863D /* ALTWrappedError.m in Sources */ = {isa = PBXBuildFile; fileRef = D51AD27D29356B7B00967AAA /* ALTWrappedError.m */; };
+		D5FB7A392AA28D8300EF863D /* NSError+ALTServerError.m in Sources */ = {isa = PBXBuildFile; fileRef = BF1E314922A060F400370A3C /* NSError+ALTServerError.m */; };
+		D5FB7A472AA293D000EF863D /* ALTErrorKeys.m in Sources */ = {isa = PBXBuildFile; fileRef = D5FB7A462AA293D000EF863D /* ALTErrorKeys.m */; };
 		D5FD4EC52A952EAD0097BEE8 /* AltWidgetBundle.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FD4EC42A952EAD0097BEE8 /* AltWidgetBundle.swift */; };
 		D5FD4EC92A9530C00097BEE8 /* AppSnapshot.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FD4EC82A9530C00097BEE8 /* AppSnapshot.swift */; };
 		D5FD4ECB2A9532960097BEE8 /* DatabaseManager+Async.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5FD4ECA2A9532960097BEE8 /* DatabaseManager+Async.swift */; };
@@ -546,6 +569,13 @@
 			remoteGlobalIDString = BF66EE7D2501AE50007EE018;
 			remoteInfo = AltStoreCore;
 		};
+		D537C8562AA94D4A009A1E08 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = BFD247622284B9A500981D42 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = D5FB7A122AA284BE00EF863D;
+			remoteInfo = AltJIT;
+		};
 /* End PBXContainerItemProxy section */

 /* Begin PBXCopyFilesBuildPhase section */
@@ -572,6 +602,28 @@
 			name = "Embed Foundation Extensions";
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		BFF7C910257844C900E55F36 /* Embed XPC Services */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "$(CONTENTS_FOLDER_PATH)/XPCServices";
+			dstSubfolderSpec = 16;
+			files = (
+				BFF7C90F257844C900E55F36 /* AltXPC.xpc in Embed XPC Services */,
+			);
+			name = "Embed XPC Services";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		D52DD3602AAA89A700A7F2B6 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+				D52DD35F2AAA89A700A7F2B6 /* AltSign-Dynamic in Embed Frameworks */,
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		D561B2EC28EF5A4F006752E4 /* Embed Frameworks */ = {
 			isa = PBXCopyFilesBuildPhase;
 			buildActionMask = 2147483647;
@@ -583,6 +635,15 @@
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		D5FB7A112AA284BE00EF863D /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = /usr/share/man/man1/;
+			dstSubfolderSpec = 0;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
 /* End PBXCopyFilesBuildPhase section */

 /* Begin PBXFileReference section */
@@ -935,6 +996,7 @@
 		D533E8B82727B61400A9B5DD /* fragmentzip.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = fragmentzip.h; sourceTree = "<group>"; };
 		D533E8BB2727BBEE00A9B5DD /* libfragmentzip.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libfragmentzip.a; path = Dependencies/fragmentzip/libfragmentzip.a; sourceTree = SOURCE_ROOT; };
 		D533E8BD2727BBF800A9B5DD /* libcurl.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libcurl.a; path = Dependencies/libcurl/libcurl.a; sourceTree = SOURCE_ROOT; };
+		D537C85A2AA95066009A1E08 /* libcorecrypto.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libcorecrypto.tbd; path = Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/system/libcorecrypto.tbd; sourceTree = DEVELOPER_DIR; };
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 		D54058B82A1D6269008CCC58 /* AppPermissionProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppPermissionProtocol.swift; sourceTree = "<group>"; };
 		D54058BA2A1D8FE3008CCC58 /* UIColor+AltStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIColor+AltStore.swift"; sourceTree = "<group>"; };
@@ -970,7 +1032,13 @@
 		D5935AEC29C39DE300C157EF /* SourceDetailsComponents.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SourceDetailsComponents.swift; sourceTree = "<group>"; };
 		D5935AEE29C3B23600C157EF /* Sources.storyboard */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; path = Sources.storyboard; sourceTree = "<group>"; };
 		D593F1932717749A006E82DE /* PatchAppOperation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PatchAppOperation.swift; sourceTree = "<group>"; };
+		D59A6B7A2AA91B8E00F61259 /* PythonCommand.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PythonCommand.swift; sourceTree = "<group>"; };
+		D59A6B7D2AA9226C00F61259 /* AppProcess.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppProcess.swift; sourceTree = "<group>"; };
+		D59A6B802AA92D1C00F61259 /* Process+Conveniences.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Process+Conveniences.swift"; sourceTree = "<group>"; };
 		D5A0537229B91DB400997551 /* SourceDetailContentViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SourceDetailContentViewController.swift; sourceTree = "<group>"; };
+		D5A1D2E32AA50EB60066CACC /* JITError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = JITError.swift; sourceTree = "<group>"; };
+		D5A1D2E82AA512940066CACC /* RemoteServiceDiscoveryTunnel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RemoteServiceDiscoveryTunnel.swift; sourceTree = "<group>"; };
+		D5A1D2EA2AA513410066CACC /* URL+Tools.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "URL+Tools.swift"; sourceTree = "<group>"; };
 		D5A2193329B14F94002229FC /* DeprecatedAPIs.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeprecatedAPIs.swift; sourceTree = "<group>"; };
 		D5ACE84428E3B8450021CAB9 /* ClearAppCacheOperation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClearAppCacheOperation.swift; sourceTree = "<group>"; };
 		D5CA0C4A280E141900469595 /* ManagedPatron.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ManagedPatron.swift; sourceTree = "<group>"; };
@@ -991,6 +1059,16 @@
 		D5F99A1728D11DB500476A16 /* AltStore10ToAltStore11.xcmappingmodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcmappingmodel; path = AltStore10ToAltStore11.xcmappingmodel; sourceTree = "<group>"; };
 		D5F99A1928D12B1400476A16 /* StoreApp10ToStoreApp11Policy.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StoreApp10ToStoreApp11Policy.swift; sourceTree = "<group>"; };
 		D5FB7A0D2AA25A4E00EF863D /* Previews.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Previews.xcassets; sourceTree = "<group>"; };
+		D5FB7A132AA284BE00EF863D /* altjit */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = altjit; sourceTree = BUILT_PRODUCTS_DIR; };
+		D5FB7A1A2AA284ED00EF863D /* EnableJIT.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = EnableJIT.swift; path = AltJIT/Commands/EnableJIT.swift; sourceTree = SOURCE_ROOT; };
+		D5FB7A1B2AA284ED00EF863D /* ProcessError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = ProcessError.swift; path = Shared/Errors/ProcessError.swift; sourceTree = SOURCE_ROOT; };
+		D5FB7A1D2AA284ED00EF863D /* Logger+AltJIT.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = "Logger+AltJIT.swift"; path = "AltJIT/Extensions/Logger+AltJIT.swift"; sourceTree = SOURCE_ROOT; };
+		D5FB7A1E2AA284ED00EF863D /* AltJIT.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = AltJIT.swift; path = AltJIT/AltJIT.swift; sourceTree = SOURCE_ROOT; };
+		D5FB7A1F2AA284ED00EF863D /* MountDisk.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = MountDisk.swift; path = AltJIT/Commands/MountDisk.swift; sourceTree = SOURCE_ROOT; };
+		D5FB7A202AA284ED00EF863D /* Task+Timeout.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = "Task+Timeout.swift"; path = "AltJIT/Extensions/Task+Timeout.swift"; sourceTree = SOURCE_ROOT; };
+		D5FB7A382AA28AC700EF863D /* AltJIT-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "AltJIT-Bridging-Header.h"; path = "AltJIT/AltJIT-Bridging-Header.h"; sourceTree = SOURCE_ROOT; };
+		D5FB7A452AA293D000EF863D /* ALTErrorKeys.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ALTErrorKeys.h; sourceTree = "<group>"; };
+		D5FB7A462AA293D000EF863D /* ALTErrorKeys.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ALTErrorKeys.m; sourceTree = "<group>"; };
 		D5FD4EC42A952EAD0097BEE8 /* AltWidgetBundle.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AltWidgetBundle.swift; sourceTree = "<group>"; };
 		D5FD4EC82A9530C00097BEE8 /* AppSnapshot.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppSnapshot.swift; sourceTree = "<group>"; };
 		D5FD4ECA2A9532960097BEE8 /* DatabaseManager+Async.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "DatabaseManager+Async.swift"; sourceTree = "<group>"; };
@@ -1087,6 +1165,16 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		D5FB7A102AA284BE00EF863D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D52DD35E2AAA89A600A7F2B6 /* AltSign-Dynamic in Frameworks */,
+				D537C85B2AA9507A009A1E08 /* libcorecrypto.tbd in Frameworks */,
+				D5FB7A2E2AA2859400EF863D /* ArgumentParser in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */

 /* Begin PBXGroup section */
@@ -1249,6 +1337,7 @@
 				0EE7FDBF2BE8BBBF00D1E390 /* Errors */,
 				BFF767C32489A6800097E58C /* Extensions */,
 				BFF767C42489A6980097E58C /* Categories */,
+				D59A6B7C2AA9225C00F61259 /* Types */,
 			);
 			path = Shared;
 			sourceTree = "<group>";
@@ -1722,6 +1811,9 @@
 				19104DB32909C06D00C49C7B /* EmotionalDamage */,
 				191E5FAC290A5D92001A3B7C /* minimuxer */,
 				B343F886295F7F9B002B1159 /* libfragmentzip.xcodeproj */,
+				BFF7C905257844C900E55F36 /* AltXPC */,
+				D5FB7A142AA284BE00EF863D /* AltJIT */,
+				D586D39928EF58B0000E101F /* AltTests */,
 				BFD247852284BB3300981D42 /* Frameworks */,
 				B3146EC6284F580500BBC3FD /* Roxas.xcodeproj */,
 				BFD2476B2284B9A500981D42 /* Products */,
@@ -1740,6 +1832,9 @@
 				BF989167250AABF3002ACF50 /* AltWidgetExtension.appex */,
 				19104DB22909C06C00C49C7B /* libEmotionalDamage.a */,
 				191E5FAB290A5D92001A3B7C /* libminimuxer.a */,
+				BFF7C904257844C900E55F36 /* AltXPC.xpc */,
+				D586D39828EF58B0000E101F /* AltTests.xctest */,
+				D5FB7A132AA284BE00EF863D /* altjit */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -1782,6 +1877,7 @@
 			children = (
 				B343F86C295F759E002B1159 /* libresolv.tbd */,
 				B39575F4284F29E20080B4FF /* Roxas.framework */,
+				D537C85A2AA95066009A1E08 /* libcorecrypto.tbd */,
 				D533E8B62727841800A9B5DD /* libAppleArchive.tbd */,
 				BF580497246A3D19008AE704 /* UIKit.framework */,
 				BF4588872298DD3F00BD7491 /* libxml2.tbd */,
@@ -1940,6 +2036,7 @@
 				BFF435D7255CBDAB00DD724F /* ALTApplication+AltStoreApp.swift */,
 				BF6C336124197D700034FD24 /* NSError+AltStore.swift */,
 				D5708416292448DA00D42D34 /* OperatingSystemVersion+Comparable.swift */,
+				D59A6B802AA92D1C00F61259 /* Process+Conveniences.swift */,
 			);
 			path = Extensions;
 			sourceTree = "<group>";
@@ -2011,6 +2108,17 @@
 			path = Model;
 			sourceTree = "<group>";
 		};
+		D522F9562AA509E9003E57D1 /* Types */ = {
+			isa = PBXGroup;
+			children = (
+				D5FB7A452AA293D000EF863D /* ALTErrorKeys.h */,
+				D5FB7A462AA293D000EF863D /* ALTErrorKeys.m */,
+				D5A1D2E82AA512940066CACC /* RemoteServiceDiscoveryTunnel.swift */,
+				D59A6B7A2AA91B8E00F61259 /* PythonCommand.swift */,
+			);
+			path = Types;
+			sourceTree = "<group>";
+		};
 		D54058B72A1D6251008CCC58 /* Previews */ = {
 			isa = PBXGroup;
 			children = (
@@ -2065,6 +2173,14 @@
 			path = "Error Log";
 			sourceTree = "<group>";
 		};
+		D59A6B7C2AA9225C00F61259 /* Types */ = {
+			isa = PBXGroup;
+			children = (
+				D59A6B7D2AA9226C00F61259 /* AppProcess.swift */,
+			);
+			path = Types;
+			sourceTree = "<group>";
+		};
 		D5DB145728F9DC0300A8F606 /* Errors */ = {
 			isa = PBXGroup;
 			children = (
@@ -2072,10 +2188,43 @@
 				D5189C002A01BC6800F44625 /* UserInfoValue.swift */,
 				D51AD27C29356B7B00967AAA /* ALTWrappedError.h */,
 				D51AD27D29356B7B00967AAA /* ALTWrappedError.m */,
+				D5FB7A1B2AA284ED00EF863D /* ProcessError.swift */,
+				D5A1D2E32AA50EB60066CACC /* JITError.swift */,
 			);
 			path = Errors;
 			sourceTree = "<group>";
 		};
+		D5FB7A142AA284BE00EF863D /* AltJIT */ = {
+			isa = PBXGroup;
+			children = (
+				D5FB7A1E2AA284ED00EF863D /* AltJIT.swift */,
+				D5FB7A382AA28AC700EF863D /* AltJIT-Bridging-Header.h */,
+				D5FB7A282AA2851200EF863D /* Commands */,
+				D522F9562AA509E9003E57D1 /* Types */,
+				D5FB7A292AA2851C00EF863D /* Extensions */,
+			);
+			path = AltJIT;
+			sourceTree = "<group>";
+		};
+		D5FB7A282AA2851200EF863D /* Commands */ = {
+			isa = PBXGroup;
+			children = (
+				D5FB7A1A2AA284ED00EF863D /* EnableJIT.swift */,
+				D5FB7A1F2AA284ED00EF863D /* MountDisk.swift */,
+			);
+			path = Commands;
+			sourceTree = "<group>";
+		};
+		D5FB7A292AA2851C00EF863D /* Extensions */ = {
+			isa = PBXGroup;
+			children = (
+				D5FB7A1D2AA284ED00EF863D /* Logger+AltJIT.swift */,
+				D5A1D2EA2AA513410066CACC /* URL+Tools.swift */,
+				D5FB7A202AA284ED00EF863D /* Task+Timeout.swift */,
+			);
+			path = Extensions;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */

 /* Begin PBXHeadersBuildPhase section */
@@ -2298,6 +2447,28 @@
 			productReference = BFD2476A2284B9A500981D42 /* SideStore.app */;
 			productType = "com.apple.product-type.application";
 		};
+		D5FB7A122AA284BE00EF863D /* AltJIT */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = D5FB7A172AA284BE00EF863D /* Build configuration list for PBXNativeTarget "AltJIT" */;
+			buildPhases = (
+				D5FB7A0F2AA284BE00EF863D /* Sources */,
+				D5FB7A102AA284BE00EF863D /* Frameworks */,
+				D5FB7A112AA284BE00EF863D /* CopyFiles */,
+				D52DD3602AAA89A700A7F2B6 /* Embed Frameworks */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = AltJIT;
+			packageProductDependencies = (
+				D5FB7A2D2AA2859400EF863D /* ArgumentParser */,
+				D52DD35D2AAA89A600A7F2B6 /* AltSign-Dynamic */,
+			);
+			productName = AltJIT;
+			productReference = D5FB7A132AA284BE00EF863D /* altjit */;
+			productType = "com.apple.product-type.tool";
+		};
 /* End PBXNativeTarget section */

 /* Begin PBXProject section */
@@ -2343,6 +2514,17 @@
 							};
 						};
 					};
+					BFF7C903257844C900E55F36 = {
+						CreatedOnToolsVersion = 12.3;
+						LastSwiftMigration = 1230;
+					};
+					D586D39728EF58B0000E101F = {
+						CreatedOnToolsVersion = 14.0.1;
+						TestTargetID = BFD247692284B9A500981D42;
+					};
+					D5FB7A122AA284BE00EF863D = {
+						CreatedOnToolsVersion = 15.0;
+					};
 				};
 			};
 			buildConfigurationList = BFD247652284B9A500981D42 /* Build configuration list for PBXProject "AltStore" */;
@@ -2365,6 +2547,7 @@
 				4879A9602861049C00FC1BBD /* XCRemoteSwiftPackageReference "OpenSSL" */,
 				99C4EF472978D52400CB538D /* XCRemoteSwiftPackageReference "SemanticVersion" */,
 				9922FFEA29B501C50020F868 /* XCRemoteSwiftPackageReference "Starscream" */,
+				D5FB7A2C2AA2859400EF863D /* XCRemoteSwiftPackageReference "swift-argument-parser" */,
 			);
 			productRefGroup = BFD2476B2284B9A500981D42 /* Products */;
 			projectDirPath = "";
@@ -2396,6 +2579,9 @@
 				BF989166250AABF3002ACF50 /* AltWidgetExtension */,
 				19104DB12909C06C00C49C7B /* EmotionalDamage */,
 				191E5FAA290A5D92001A3B7C /* minimuxer */,
+				BFF7C903257844C900E55F36 /* AltXPC */,
+				D5FB7A122AA284BE00EF863D /* AltJIT */,
+				D586D39728EF58B0000E101F /* AltTests */,
 			);
 		};
 /* End PBXProject section */
@@ -2948,6 +3134,51 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		BFF7C900257844C900E55F36 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				BFF7C9342578492100E55F36 /* ALTAnisetteData.m in Sources */,
+				BFF7C920257844FA00E55F36 /* ALTPluginService.m in Sources */,
+				BF77A67E25795BBE00BFE477 /* main.swift in Sources */,
+				BF77A67025795A5600BFE477 /* AltXPC.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		D586D39428EF58B0000E101F /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D586D39B28EF58B0000E101F /* AltTests.swift in Sources */,
+				D5F5AF2E28FDD2EC00C938F5 /* TestErrors.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		D5FB7A0F2AA284BE00EF863D /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				D5A1D2EB2AA513410066CACC /* URL+Tools.swift in Sources */,
+				D5FB7A212AA284ED00EF863D /* EnableJIT.swift in Sources */,
+				D5FB7A312AA28A2900EF863D /* NSError+AltStore.swift in Sources */,
+				D59A6B7B2AA91B8E00F61259 /* PythonCommand.swift in Sources */,
+				D5A1D2EC2AA51D490066CACC /* ProcessError.swift in Sources */,
+				D5FB7A262AA284ED00EF863D /* MountDisk.swift in Sources */,
+				D5FB7A392AA28D8300EF863D /* NSError+ALTServerError.m in Sources */,
+				D5FB7A472AA293D000EF863D /* ALTErrorKeys.m in Sources */,
+				D59A6B7F2AA9226C00F61259 /* AppProcess.swift in Sources */,
+				D5FB7A272AA284ED00EF863D /* Task+Timeout.swift in Sources */,
+				D59A6B822AA92D1C00F61259 /* Process+Conveniences.swift in Sources */,
+				D5FB7A2A2AA2854100EF863D /* ALTLocalizedError.swift in Sources */,
+				D5A1D2E92AA512940066CACC /* RemoteServiceDiscoveryTunnel.swift in Sources */,
+				D5FB7A2B2AA2854400EF863D /* UserInfoValue.swift in Sources */,
+				D5FB7A242AA284ED00EF863D /* Logger+AltJIT.swift in Sources */,
+				D5A1D2E42AA50EB60066CACC /* JITError.swift in Sources */,
+				D5FB7A252AA284ED00EF863D /* AltJIT.swift in Sources */,
+				D5FB7A322AA28A4000EF863D /* ALTWrappedError.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */

 /* Begin PBXTargetDependency section */
@@ -3740,6 +3971,80 @@
 			};
 			name = Release;
 		};
+		D5FB7A182AA284BE00EF863D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
+				CREATE_INFOPLIST_SECTION_IN_BINARY = YES;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				DEVELOPMENT_TEAM = 6XVY5G3U44;
+				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+					"ALTJIT=1",
+				);
+				GENERATE_INFOPLIST_FILE = YES;
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/usr/lib/system",
+				);
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				OTHER_SWIFT_FLAGS = "";
+				PRODUCT_BUNDLE_IDENTIFIER = com.rileytestut.AltJIT;
+				PRODUCT_NAME = altjit;
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SDKROOT = macosx;
+				SKIP_INSTALL = NO;
+				SWIFT_OBJC_BRIDGING_HEADER = "AltJIT/AltJIT-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		D5FB7A192AA284BE00EF863D /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
+				CREATE_INFOPLIST_SECTION_IN_BINARY = YES;
+				DEVELOPMENT_TEAM = 6XVY5G3U44;
+				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"$(inherited)",
+					"ALTJIT=1",
+				);
+				GENERATE_INFOPLIST_FILE = YES;
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/usr/lib/system",
+				);
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				OTHER_SWIFT_FLAGS = "";
+				PRODUCT_BUNDLE_IDENTIFIER = com.rileytestut.AltJIT;
+				PRODUCT_NAME = altjit;
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SDKROOT = macosx;
+				SKIP_INSTALL = NO;
+				SWIFT_OBJC_BRIDGING_HEADER = "AltJIT/AltJIT-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
 /* End XCBuildConfiguration section */

 /* Begin XCConfigurationList section */
@@ -3824,6 +4129,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		D5FB7A172AA284BE00EF863D /* Build configuration list for PBXNativeTarget "AltJIT" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				D5FB7A182AA284BE00EF863D /* Debug */,
+				D5FB7A192AA284BE00EF863D /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */

 /* Begin XCRemoteSwiftPackageReference section */
@@ -3907,6 +4221,14 @@
 				minimumVersion = 4.1.0;
 			};
 		};
+		D5FB7A2C2AA2859400EF863D /* XCRemoteSwiftPackageReference "swift-argument-parser" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/apple/swift-argument-parser.git";
+			requirement = {
+				kind = upToNextMinorVersion;
+				minimumVersion = 1.2.3;
+			};
+		};
 /* End XCRemoteSwiftPackageReference section */

 /* Begin XCSwiftPackageProductDependency section */
@@ -3925,7 +4247,11 @@
 			package = 4879A95D2861046500FC1BBD /* XCRemoteSwiftPackageReference "AltSign" */;
 			productName = AltSign;
 		};
-		4879A9612861049C00FC1BBD /* OpenSSL */ = {
+		D52DD35D2AAA89A600A7F2B6 /* AltSign-Dynamic */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = "AltSign-Dynamic";
+		};
+		D561B2EA28EF5A4F006752E4 /* AltSign-Dynamic */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 4879A9602861049C00FC1BBD /* XCRemoteSwiftPackageReference "OpenSSL" */;
 			productName = OpenSSL;
@@ -3965,6 +4291,11 @@
 			package = B3C395F5284F362400DA9E2F /* XCRemoteSwiftPackageReference "appcenter-sdk-apple" */;
 			productName = AppCenterCrashes;
 		};
+		D5FB7A2D2AA2859400EF863D /* ArgumentParser */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = D5FB7A2C2AA2859400EF863D /* XCRemoteSwiftPackageReference "swift-argument-parser" */;
+			productName = ArgumentParser;
+		};
 /* End XCSwiftPackageProductDependency section */

 /* Begin XCVersionGroup section */
--- a/AltStore.xcodeproj/xcshareddata/xcschemes/AltJIT.xcscheme
+++ b/AltStore.xcodeproj/xcshareddata/xcschemes/AltJIT.xcscheme
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1500"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D5FB7A122AA284BE00EF863D"
+               BuildableName = "altjit"
+               BlueprintName = "AltJIT"
+               ReferencedContainer = "container:AltStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      debugAsWhichUser = "root"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES"
+      viewDebuggingEnabled = "No">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "D5FB7A122AA284BE00EF863D"
+            BuildableName = "altjit"
+            BlueprintName = "AltJIT"
+            ReferencedContainer = "container:AltStore.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+         <CommandLineArgument
+            argument = "enable"
+            isEnabled = "YES">
+         </CommandLineArgument>
+         <CommandLineArgument
+            argument = "mount"
+            isEnabled = "NO">
+         </CommandLineArgument>
+         <CommandLineArgument
+            argument = "DolphiniOS"
+            isEnabled = "YES">
+         </CommandLineArgument>
+         <CommandLineArgument
+            argument = "--udid"
+            isEnabled = "YES">
+         </CommandLineArgument>
+         <CommandLineArgument
+            argument = "00008030-001948590202802E"
+            isEnabled = "YES">
+         </CommandLineArgument>
+      </CommandLineArguments>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "D5FB7A122AA284BE00EF863D"
+            BuildableName = "altjit"
+            BlueprintName = "AltJIT"
+            ReferencedContainer = "container:AltStore.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
--- a/Shared/Categories/NSError+ALTServerError.m
+++ b/Shared/Categories/NSError+ALTServerError.m
@@ -14,7 +14,16 @@
 #import "AltStoreCore/AltStoreCore-Swift.h"
 #endif

+#if ALTJIT
+#import "AltJIT-Swift.h"
@import AltSign;
+#elif TARGET_OS_OSX
+#import "AltServer-Swift.h"
+@import AltSign;
+#elif !TARGET_OS_OSX
+#import <AltStoreCore/AltStoreCore-Swift.h>
+@import AltSign;
+#endif

 NSErrorDomain const AltServerErrorDomain = @"AltServer.ServerError";
 NSErrorDomain const AltServerInstallationErrorDomain = @"AltServer.InstallationError";
--- a/Shared/Errors/ALTLocalizedError.swift
+++ b/Shared/Errors/ALTLocalizedError.swift
@@ -7,7 +7,10 @@
 //

 import Foundation
+
+#if !ALTJIT
 import AltSign
+#endif

 public let ALTLocalizedTitleErrorKey = "ALTLocalizedTitle"
 public let ALTLocalizedDescriptionKey = "ALTLocalizedDescription"
--- a/Shared/Errors/JITError.swift
+++ b/Shared/Errors/JITError.swift
@@ -0,0 +1,52 @@
+//
+//  JITError.swift
+//  AltJIT
+//
+//  Created by Riley Testut on 9/3/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+extension JITError
+{
+    enum Code: Int, ALTErrorCode
+    {
+        typealias Error = JITError
+        
+        case processNotRunning
+    }
+    
+    static func processNotRunning(_ process: AppProcess, file: StaticString = #file, line: Int = #line) -> JITError {
+        JITError(code: .processNotRunning, process: process, sourceFile: file, sourceLine: UInt(line))
+    }
+}
+
+struct JITError: ALTLocalizedError
+{
+    let code: Code
+    
+    var errorTitle: String?
+    var errorFailure: String?
+    
+    @UserInfoValue var process: AppProcess?
+    
+    var sourceFile: StaticString?
+    var sourceLine: UInt?
+    
+    var errorFailureReason: String {
+        switch self.code
+        {
+        case .processNotRunning:
+            let targetName = self.process?.description ?? NSLocalizedString("The target app", comment: "")
+            return String(format: NSLocalizedString("%@ is not running.", comment: ""), targetName)
+        }
+    }
+    
+    var recoverySuggestion: String? {
+        switch self.code
+        {
+        case .processNotRunning: return NSLocalizedString("Make sure the app is running in the foreground on your device then try again.", comment: "")
+        }
+    }
+}
--- a/Shared/Errors/ProcessError.swift
+++ b/Shared/Errors/ProcessError.swift
@@ -0,0 +1,88 @@
+//
+//  ProcessError.swift
+//  AltPackage
+//
+//  Created by Riley Testut on 9/1/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+extension ProcessError
+{
+    enum Code: Int, ALTErrorCode
+    {
+        typealias Error = ProcessError
+        
+        case failed
+        case timedOut
+        case unexpectedOutput
+        case terminated
+    }
+    
+    static func failed(executableURL: URL, exitCode: Int32, output: String?, file: StaticString = #file, line: Int = #line) -> ProcessError {
+        ProcessError(code: .failed, executableURL: executableURL, exitCode: exitCode, output: output, sourceFile: file, sourceLine: UInt(line))
+    }
+            
+    static func timedOut(executableURL: URL, exitCode: Int32? = nil, output: String? = nil, file: StaticString = #file, line: Int = #line) -> ProcessError {
+        ProcessError(code: .timedOut, executableURL: executableURL, exitCode: exitCode, output: output, sourceFile: file, sourceLine: UInt(line))
+    }
+    
+    static func unexpectedOutput(executableURL: URL, output: String, exitCode: Int32? = nil, file: StaticString = #file, line: Int = #line) -> ProcessError {
+        ProcessError(code: .unexpectedOutput, executableURL: executableURL, exitCode: exitCode, output: output, sourceFile: file, sourceLine: UInt(line))
+    }
+    
+    static func terminated(executableURL: URL, exitCode: Int32, output: String, file: StaticString = #file, line: Int = #line) -> ProcessError {
+        ProcessError(code: .terminated, executableURL: executableURL, exitCode: exitCode, output: output, sourceFile: file, sourceLine: UInt(line))
+    }
+}
+
+struct ProcessError: ALTLocalizedError
+{
+    let code: Code
+    
+    var errorTitle: String?
+    var errorFailure: String?
+    
+    @UserInfoValue var executableURL: URL?
+    @UserInfoValue var exitCode: Int32?
+    @UserInfoValue var output: String?
+    
+    var sourceFile: StaticString?
+    var sourceLine: UInt?
+    
+    var errorFailureReason: String {
+        switch self.code
+        {
+        case .failed:
+            guard let exitCode else { return String(format: NSLocalizedString("%@ failed.", comment: ""), self.processName) }
+            
+            let baseMessage = String(format: NSLocalizedString("%@ failed with code %@.", comment: ""), self.processName, NSNumber(value: exitCode))
+            guard let lastLine = self.lastOutputLine else { return baseMessage }
+            
+            let failureReason = baseMessage + " " + lastLine
+            return failureReason
+            
+        case .timedOut: return String(format: NSLocalizedString("%@ timed out.", comment: ""), self.processName)
+        case .terminated: return String(format: NSLocalizedString("%@ unexpectedly quit.", comment: ""), self.processName)
+        case .unexpectedOutput:
+            let baseMessage = String(format: NSLocalizedString("%@ returned unexpected output.", comment: ""), self.processName)
+            guard let lastLine = self.lastOutputLine else { return baseMessage }
+            
+            let failureReason = baseMessage + " " + lastLine
+            return failureReason
+        }
+    }
+    
+    private var processName: String {
+        guard let executableName = self.executableURL?.lastPathComponent else { return NSLocalizedString("The process", comment: "") }
+        return String(format: NSLocalizedString("The process '%@'", comment: ""), executableName)
+    }
+    
+    private var lastOutputLine: String? {
+        guard let output else { return nil }
+        
+        let lastLine = output.components(separatedBy: .newlines).last(where: { !$0.isEmpty })
+        return lastLine
+    }
+}
--- a/Shared/Extensions/Process+Conveniences.swift
+++ b/Shared/Extensions/Process+Conveniences.swift
@@ -0,0 +1,151 @@
+//
+//  Process+Conveniences.swift
+//  AltStore
+//
+//  Created by Riley Testut on 9/6/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import OSLog
+import Combine
+
+@available(macOS 12, *)
+extension Process
+{
+    // Based loosely off of https://developer.apple.com/forums/thread/690310
+    class func launch(_ toolURL: URL, arguments: [String] = [], environment: [String: String] = ProcessInfo.processInfo.environment) throws -> Process
+    {
+        let inputPipe = Pipe()
+        let outputPipe = Pipe()
+        
+        let process = Process()
+        process.executableURL = toolURL
+        process.arguments = arguments
+        process.environment = environment
+        process.standardInput = inputPipe
+        process.standardOutput = outputPipe
+        process.standardError = outputPipe
+        
+        func posixErr(_ error: Int32) -> Error { NSError(domain: NSPOSIXErrorDomain, code: Int(error), userInfo: nil) }
+        
+        // If you write to a pipe whose remote end has closed, the OS raises a
+        // `SIGPIPE` signal whose default disposition is to terminate your
+        // process.  Helpful!  `F_SETNOSIGPIPE` disables that feature, causing
+        // the write to fail with `EPIPE` instead.
+        
+        let fcntlResult = fcntl(inputPipe.fileHandleForWriting.fileDescriptor, F_SETNOSIGPIPE, 1)
+        guard fcntlResult >= 0 else { throw posixErr(errno) }
+        
+        // Actually run the process.
+        try process.run()
+        
+        let outputTask = Task {
+            do
+            {
+                let logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: toolURL.lastPathComponent)
+                
+                // Automatically cancels when fileHandle closes.
+                for try await line in outputPipe.fileHandleForReading.bytes.lines
+                {
+                    process.output += line + "\n"
+                    process.outputPublisher.send(line)
+                    
+                    logger.notice("\(line, privacy: .public)")
+                }
+                
+                try Task.checkCancellation()
+                process.outputPublisher.send(completion: .finished)
+            }
+            catch let error as CancellationError
+            {
+                process.outputPublisher.send(completion: .failure(error))
+            }
+            catch
+            {
+                Logger.main.error("Failed to read process output. \(error.localizedDescription, privacy: .public)")
+                
+                try Task.checkCancellation()
+                process.outputPublisher.send(completion: .failure(error))
+            }
+        }
+        
+        process.terminationHandler = { process in
+            Logger.main.notice("Process \(toolURL, privacy: .public) terminated with exit code \(process.terminationStatus).")
+            
+            outputTask.cancel()
+            process.outputPublisher.send(completion: .finished)
+        }
+        
+        return process
+    }
+    
+    class func launchAndWait(_ toolURL: URL, arguments: [String] = [], environment: [String: String] = ProcessInfo.processInfo.environment) async throws -> String
+    {
+        let process = try self.launch(toolURL, arguments: arguments, environment: environment)
+        
+        await withCheckedContinuation { (continuation: CheckedContinuation<Void, Never>) in
+            let previousHandler = process.terminationHandler
+            process.terminationHandler = { process in
+                previousHandler?(process)
+                continuation.resume()
+            }
+        }
+        
+        guard process.terminationStatus == 0 else {
+            throw ProcessError.failed(executableURL: toolURL, exitCode: process.terminationStatus, output: process.output)
+        }
+        
+        return process.output
+    }
+}
+
+@available(macOS 12, *)
+extension Process
+{
+    private static var outputKey: Int = 0
+    private static var publisherKey: Int = 0
+    
+    fileprivate(set) var output: String {
+        get {
+            let output = objc_getAssociatedObject(self, &Process.outputKey) as? String ?? ""
+            return output
+        }
+        set {
+            objc_setAssociatedObject(self, &Process.outputKey, newValue, .OBJC_ASSOCIATION_COPY_NONATOMIC)
+        }
+    }
+    
+    // Should be type-erased, but oh well.
+    var outputLines: AsyncThrowingPublisher<some Publisher<String, Error>> {
+        return self.outputPublisher
+            .buffer(size: 100, prefetch: .byRequest, whenFull: .dropOldest)
+            .values
+    }
+    
+    private var outputPublisher: PassthroughSubject<String, Error> {
+        if let publisher = objc_getAssociatedObject(self, &Process.publisherKey) as? PassthroughSubject<String, Error>
+        {
+            return publisher
+        }
+        
+        let publisher = PassthroughSubject<String, Error>()
+        objc_setAssociatedObject(self, &Process.publisherKey, publisher, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
+        return publisher
+    }
+    
+    // We must manually close outputPipe in order for us to read a second Process' standardOutput via async-await 🤷‍♂️
+    func stopOutput()
+    {
+        guard let outputPipe = self.standardOutput as? Pipe else { return }
+        
+        do
+        {
+            try outputPipe.fileHandleForReading.close()
+        }
+        catch
+        {
+            Logger.main.error("Failed to close \(self.executableURL?.lastPathComponent ?? "process", privacy: .public)'s standardOutput. \(error.localizedDescription, privacy: .public)")
+        }
+    }
+}
--- a/Shared/Types/AppProcess.swift
+++ b/Shared/Types/AppProcess.swift
@@ -0,0 +1,35 @@
+//
+//  AppProcess.swift
+//  AltStore
+//
+//  Created by Riley Testut on 9/6/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+enum AppProcess: CustomStringConvertible
+{
+    case name(String)
+    case pid(Int)
+    
+    var description: String {
+        switch self
+        {
+        case .name(let name): return name
+        case .pid(let pid): return "Process \(pid)"
+        }
+    }
+    
+    init(_ value: String)
+    {
+        if let pid = Int(value)
+        {
+            self = .pid(pid)
+        }
+        else
+        {
+            self = .name(value)
+        }
+    }
+}