I have a Swift Package Build Tool Plugin to generate localizations and design tokens, which looks like this currently. // Copyright © 2023 MEGA Limited. All rights reserved. import PackagePlugin @main struct GenerateTokenBuildTool: BuildToolPlugin { func createBuildCommands(context: PluginContext, target: Target) async throws -> [Command] { guard let target = target as? SourceModuleTarget else { return [] } return try target.sourceFiles(withSuffix: "xcassets").map { assetCatalog in let base = assetCatalog.path.stem let input = assetCatalog.path let output = context.pluginWorkDirectory.appending(["\(base).swift"]) // Use this when archiving for MacCatalyst let tool = try context.tool(named: "AssetTokenGenerator").path let toolName = tool.lastComponent let path = tool.removingLastComponent() let macPath = path.removingLastComponent().appending(subpath: path.lastComponent + "-maccatalyst") let executable = macPath.appending(subpath: toolName) // // Use this when archiving for iOS/iPadOS // let executable = try context.tool(named: "AssetTokenGenerator").path return .buildCommand( displayName: "Generating tokens for \(base).xcassets", executable: executable, arguments: [input.string, output.string], inputFiles: [input], outputFiles: [output] ) } } } If you notice, I need to do a bit of manual bug fixing when determining the path of my executable. When building for Mac Catalyst, context.tool(named:).path is pointing to an incorrect folder, thus failing the build for my project with this error: Command PhaseScriptExecution failed with a nonzero exit code sandbox-exec: execvp() of '//Users/mega-jfe/Library/Developer/Xcode/DerivedData/MEGAVPN-efdcwfcaosxfvneqjuvhrvdmbkax/Build/Products/Debug/AssetTokenGenerator' failed: No such file or directory It's suppposed to be using the Debug-maccatalyst folder, but Xcode is pointing the path to Debug. I feel like this is a bug, or else please let me know how I can handle this so that I can build for both without manually changing the code when building for Catalyst. Thanks!