diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7136600b1..37887d79d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - uses: jdx/mise-action@v2
-      - run: mise run lint
+      - run: mise run lint-ci
   macOS:
     strategy:
       fail-fast: false
diff --git a/.mise/tasks/lint b/.mise/tasks/lint
index 6b47c9fe7..fbfd78207 100755
--- a/.mise/tasks/lint
+++ b/.mise/tasks/lint
@@ -4,5 +4,5 @@ set -euo pipefail
 
 cd $MISE_PROJECT_ROOT
 
-swiftformat --quiet --strict .
-swiftlint lint --quiet --strict
+swiftformat .
+swiftlint lint --quiet
diff --git a/.mise/tasks/lint-ci b/.mise/tasks/lint-ci
new file mode 100755
index 000000000..a7cc42efd
--- /dev/null
+++ b/.mise/tasks/lint-ci
@@ -0,0 +1,8 @@
+#!/bin/bash
+# mise description="Lint the project for CI"
+set -euo pipefail
+
+cd $MISE_PROJECT_ROOT
+
+swiftformat --quiet --strict .
+swiftlint lint --quiet --strict
diff --git a/Package.swift b/Package.swift
index c8ee3b223..3f4c684e5 100644
--- a/Package.swift
+++ b/Package.swift
@@ -35,6 +35,7 @@ var targets: [PackageDescription.Target] = [
         name: "Frontend",
         dependencies: [
             .target(name: "Shared"),
+            .target(name: "Configuration"),
             .target(name: "SourceGraph"),
             .target(name: "PeripheryKit"),
             .target(name: "ProjectDrivers"),
@@ -42,6 +43,25 @@ var targets: [PackageDescription.Target] = [
             .product(name: "FilenameMatcher", package: "swift-filename-matcher"),
         ]
     ),
+    .target(
+        name: "Configuration",
+        dependencies: [
+            .target(name: "Extensions"),
+            .target(name: "Shared"),
+            .target(name: "Logger"),
+            .product(name: "Yams", package: "Yams"),
+            .product(name: "SystemPackage", package: "swift-system"),
+            .product(name: "FilenameMatcher", package: "swift-filename-matcher"),
+        ]
+    ),
+    .target(
+        name: "Extensions",
+        dependencies: [
+            .product(name: "SystemPackage", package: "swift-system"),
+            .product(name: "FilenameMatcher", package: "swift-filename-matcher"),
+        ]
+    ),
+    .target(name: "Logger"),
     .target(
         name: "PeripheryKit",
         dependencies: [
@@ -80,6 +100,7 @@ var targets: [PackageDescription.Target] = [
     .target(
         name: "SourceGraph",
         dependencies: [
+            .target(name: "Configuration"),
             .product(name: "SwiftSyntax", package: "swift-syntax"),
             .target(name: "Shared"),
         ]
@@ -87,7 +108,8 @@ var targets: [PackageDescription.Target] = [
     .target(
         name: "Shared",
         dependencies: [
-            .product(name: "Yams", package: "Yams"),
+            .target(name: "Extensions"),
+            .target(name: "Logger"),
             .product(name: "SystemPackage", package: "swift-system"),
             .product(name: "FilenameMatcher", package: "swift-filename-matcher"),
         ]
@@ -120,6 +142,7 @@ var targets: [PackageDescription.Target] = [
         dependencies: [
             .target(name: "TestShared"),
             .target(name: "PeripheryKit"),
+            .target(name: "Configuration"),
         ],
         exclude: ["AccessibilityProject"]
     ),
diff --git a/Sources/Shared/Configuration.swift b/Sources/Configuration/Configuration.swift
similarity index 99%
rename from Sources/Shared/Configuration.swift
rename to Sources/Configuration/Configuration.swift
index 610e72da8..7428078dd 100644
--- a/Sources/Shared/Configuration.swift
+++ b/Sources/Configuration/Configuration.swift
@@ -1,5 +1,8 @@
+import Extensions
 import FilenameMatcher
 import Foundation
+import Logger
+import Shared
 import SystemPackage
 import Yams
 
@@ -38,7 +41,7 @@ public final class Configuration {
     @Setting(key: "xcode_list_arguments", defaultValue: [])
     public var xcodeListArguments: [String]
 
-    @Setting(key: "retain_assign_only_property_types", defaultValue: [], setter: PropertyTypeSanitizer.sanitize)
+    @Setting(key: "retain_assign_only_property_types", defaultValue: [])
     public var retainAssignOnlyPropertyTypes: [String]
 
     @Setting(key: "external_encodable_protocols", defaultValue: [])
diff --git a/Sources/Shared/OutputFormat.swift b/Sources/Configuration/OutputFormat.swift
similarity index 100%
rename from Sources/Shared/OutputFormat.swift
rename to Sources/Configuration/OutputFormat.swift
diff --git a/Sources/Shared/Extensions/Array+Extension.swift b/Sources/Extensions/Array+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/Array+Extension.swift
rename to Sources/Extensions/Array+Extension.swift
diff --git a/Sources/Shared/Extensions/Collection+Extension.swift b/Sources/Extensions/Collection+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/Collection+Extension.swift
rename to Sources/Extensions/Collection+Extension.swift
diff --git a/Sources/Shared/Extensions/FilePath+Extension.swift b/Sources/Extensions/FilePath+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/FilePath+Extension.swift
rename to Sources/Extensions/FilePath+Extension.swift
diff --git a/Sources/Shared/Extensions/FilePath+Glob.swift b/Sources/Extensions/FilePath+Glob.swift
similarity index 98%
rename from Sources/Shared/Extensions/FilePath+Glob.swift
rename to Sources/Extensions/FilePath+Glob.swift
index 2d32d8032..bdc0b52d2 100644
--- a/Sources/Shared/Extensions/FilePath+Glob.swift
+++ b/Sources/Extensions/FilePath+Glob.swift
@@ -69,7 +69,7 @@ private class Glob {
         let firstPart = parts.removeFirst()
         var lastPart = parts.joined(separator: "**")
 
-        var directories: [URL] = if FileManager.default.fileExists(atPath: firstPart) {
+        let directories: [URL] = if FileManager.default.fileExists(atPath: firstPart) {
             exploreDirectories(url: URL(fileURLWithPath: firstPart))
         } else {
             []
diff --git a/Sources/Shared/Extensions/FilenameMatcher+Extension.swift b/Sources/Extensions/FilenameMatcher+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/FilenameMatcher+Extension.swift
rename to Sources/Extensions/FilenameMatcher+Extension.swift
diff --git a/Sources/Shared/Extensions/Sequence+Extension.swift b/Sources/Extensions/Sequence+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/Sequence+Extension.swift
rename to Sources/Extensions/Sequence+Extension.swift
diff --git a/Sources/Shared/Extensions/Set+Extension.swift b/Sources/Extensions/Set+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/Set+Extension.swift
rename to Sources/Extensions/Set+Extension.swift
diff --git a/Sources/Shared/Extensions/String+Extension.swift b/Sources/Extensions/String+Extension.swift
similarity index 100%
rename from Sources/Shared/Extensions/String+Extension.swift
rename to Sources/Extensions/String+Extension.swift
diff --git a/Sources/Shared/Extensions/String+Version.swift b/Sources/Extensions/String+Version.swift
similarity index 100%
rename from Sources/Shared/Extensions/String+Version.swift
rename to Sources/Extensions/String+Version.swift
diff --git a/Sources/Frontend/Commands/CheckUpdateCommand.swift b/Sources/Frontend/Commands/CheckUpdateCommand.swift
index cf1329552..83c9b73ff 100644
--- a/Sources/Frontend/Commands/CheckUpdateCommand.swift
+++ b/Sources/Frontend/Commands/CheckUpdateCommand.swift
@@ -1,6 +1,7 @@
 import ArgumentParser
+import Configuration
 import Foundation
-import Shared
+import Logger
 
 struct CheckUpdateCommand: FrontendCommand {
     static let configuration = CommandConfiguration(
diff --git a/Sources/Frontend/Commands/ClearCacheCommand.swift b/Sources/Frontend/Commands/ClearCacheCommand.swift
index 9897fdda4..8a45db926 100644
--- a/Sources/Frontend/Commands/ClearCacheCommand.swift
+++ b/Sources/Frontend/Commands/ClearCacheCommand.swift
@@ -1,5 +1,7 @@
 import ArgumentParser
+import Configuration
 import Foundation
+import Logger
 import Shared
 
 struct ClearCacheCommand: FrontendCommand {
diff --git a/Sources/Frontend/Commands/FrontendCommand.swift b/Sources/Frontend/Commands/FrontendCommand.swift
index 872d120eb..b7d112791 100644
--- a/Sources/Frontend/Commands/FrontendCommand.swift
+++ b/Sources/Frontend/Commands/FrontendCommand.swift
@@ -1,5 +1,5 @@
 import ArgumentParser
-import Shared
+import Logger
 
 protocol FrontendCommand: ParsableCommand {}
 extension FrontendCommand {
diff --git a/Sources/Frontend/Commands/ScanBehavior.swift b/Sources/Frontend/Commands/ScanBehavior.swift
deleted file mode 100644
index 9befb17f8..000000000
--- a/Sources/Frontend/Commands/ScanBehavior.swift
+++ /dev/null
@@ -1,100 +0,0 @@
-import Foundation
-import PeripheryKit
-import Shared
-import SystemPackage
-
-final class ScanBehavior {
-    private let configuration: Configuration
-    private let logger: Logger
-    private let shell: Shell
-    private let swiftVersion: SwiftVersion
-
-    required init(configuration: Configuration, logger: Logger, shell: Shell, swiftVersion: SwiftVersion) {
-        self.configuration = configuration
-        self.logger = logger
-        self.shell = shell
-        self.swiftVersion = swiftVersion
-    }
-
-    func setup(_ configPath: FilePath?) -> Result<Void, PeripheryError> {
-        do {
-            try configuration.load(from: configPath, logger: logger)
-        } catch let error as PeripheryError {
-            return .failure(error)
-        } catch {
-            return .failure(.underlyingError(error))
-        }
-
-        return .success(())
-    }
-
-    func main(_ block: (Project) throws -> [ScanResult]) -> Result<Void, PeripheryError> {
-        logger.contextualized(with: "version").debug(PeripheryVersion)
-
-        let project: Project
-
-        do {
-            logger.debug(swiftVersion.fullVersion)
-            try swiftVersion.validateVersion()
-
-            if configuration.guidedSetup {
-                project = try GuidedSetup(configuration: configuration, shell: shell, logger: logger).perform()
-            } else {
-                project = try Project(configuration: configuration, shell: shell, logger: logger)
-            }
-        } catch let error as PeripheryError {
-            return .failure(error)
-        } catch {
-            return .failure(.underlyingError(error))
-        }
-
-        let updateChecker = UpdateChecker(logger: logger, configuration: configuration)
-        updateChecker.run()
-
-        let results: [ScanResult]
-
-        do {
-            results = try block(project)
-
-            let interval = logger.beginInterval("result:output")
-            var baseline: Baseline?
-
-            if let baselinePath = configuration.baseline {
-                let data = try Data(contentsOf: baselinePath.url)
-                baseline = try JSONDecoder().decode(Baseline.self, from: data)
-            }
-
-            let filteredResults = try OutputDeclarationFilter(configuration: configuration, logger: logger).filter(results, with: baseline)
-
-            if let baselinePath = configuration.writeBaseline {
-                let usrs = filteredResults
-                    .flatMapSet { $0.usrs }
-                    .union(baseline?.usrs ?? [])
-                let baseline = Baseline.v1(usrs: usrs.sorted())
-                let data = try JSONEncoder().encode(baseline)
-                try data.write(to: baselinePath.url)
-            }
-
-            let output = try configuration.outputFormat.formatter.init(configuration: configuration).format(filteredResults)
-
-            if configuration.outputFormat.supportsAuxiliaryOutput {
-                logger.info("", canQuiet: true)
-            }
-
-            logger.info(output, canQuiet: false)
-            logger.endInterval(interval)
-
-            updateChecker.notifyIfAvailable()
-
-            if !filteredResults.isEmpty, configuration.strict {
-                throw PeripheryError.foundIssues(count: filteredResults.count)
-            }
-        } catch let error as PeripheryError {
-            return .failure(error)
-        } catch {
-            return .failure(.underlyingError(error))
-        }
-
-        return .success(())
-    }
-}
diff --git a/Sources/Frontend/Commands/ScanCommand.swift b/Sources/Frontend/Commands/ScanCommand.swift
index cee0171ba..f0468b888 100644
--- a/Sources/Frontend/Commands/ScanCommand.swift
+++ b/Sources/Frontend/Commands/ScanCommand.swift
@@ -1,5 +1,8 @@
 import ArgumentParser
+import Configuration
 import Foundation
+import Logger
+import PeripheryKit
 import Shared
 import SystemPackage
 
@@ -135,14 +138,13 @@ struct ScanCommand: FrontendCommand {
     private static let defaultConfiguration = Configuration()
 
     func run() throws {
+        let logger = Logger(quiet: quiet, verbose: verbose)
+        logger.contextualized(with: "version").debug(PeripheryVersion)
+
         let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
-        let shell = Shell(logger: logger)
-        let swiftVersion = SwiftVersion(shell: shell)
-        let scanBehavior = ScanBehavior(configuration: configuration, logger: logger, shell: shell, swiftVersion: swiftVersion)
 
         if !setup {
-            try scanBehavior.setup(config).get()
+            try configuration.load(from: config, logger: logger)
         }
 
         configuration.guidedSetup = setup
@@ -186,13 +188,59 @@ struct ScanCommand: FrontendCommand {
         configuration.apply(\.$bazel, bazel)
         configuration.apply(\.$bazelFilter, bazelFilter)
 
-        try scanBehavior.main { project in
-            try Scan(
-                configuration: configuration,
-                logger: logger,
-                swiftVersion: swiftVersion
-            ).perform(project: project)
-        }.get()
+        let shell = Shell(logger: logger)
+        let swiftVersion = SwiftVersion(shell: shell)
+        logger.debug(swiftVersion.fullVersion)
+        try swiftVersion.validateVersion()
+
+        let project: Project = if configuration.guidedSetup {
+            try GuidedSetup(configuration: configuration, shell: shell, logger: logger).perform()
+        } else {
+            try Project(configuration: configuration, shell: shell, logger: logger)
+        }
+
+        let updateChecker = UpdateChecker(logger: logger, configuration: configuration)
+        updateChecker.run()
+
+        let results = try Scan(
+            configuration: configuration,
+            logger: logger,
+            swiftVersion: swiftVersion
+        ).perform(project: project)
+
+        let interval = logger.beginInterval("result:output")
+        var baseline: Baseline?
+
+        if let baselinePath = configuration.baseline {
+            let data = try Data(contentsOf: baselinePath.url)
+            baseline = try JSONDecoder().decode(Baseline.self, from: data)
+        }
+
+        let filteredResults = try OutputDeclarationFilter(configuration: configuration, logger: logger).filter(results, with: baseline)
+
+        if let baselinePath = configuration.writeBaseline {
+            let usrs = filteredResults
+                .flatMapSet { $0.usrs }
+                .union(baseline?.usrs ?? [])
+            let baseline = Baseline.v1(usrs: usrs.sorted())
+            let data = try JSONEncoder().encode(baseline)
+            try data.write(to: baselinePath.url)
+        }
+
+        let output = try configuration.outputFormat.formatter.init(configuration: configuration).format(filteredResults)
+
+        if configuration.outputFormat.supportsAuxiliaryOutput {
+            logger.info("", canQuiet: true)
+        }
+
+        logger.info(output, canQuiet: false)
+        logger.endInterval(interval)
+
+        updateChecker.notifyIfAvailable()
+
+        if !filteredResults.isEmpty, configuration.strict {
+            throw PeripheryError.foundIssues(count: filteredResults.count)
+        }
     }
 }
 
diff --git a/Sources/Frontend/CommonSetupGuide.swift b/Sources/Frontend/CommonSetupGuide.swift
index 8d8aa14fb..8fb491bca 100644
--- a/Sources/Frontend/CommonSetupGuide.swift
+++ b/Sources/Frontend/CommonSetupGuide.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 
 final class CommonSetupGuide: SetupGuideHelpers {
diff --git a/Sources/Frontend/GuidedSetup.swift b/Sources/Frontend/GuidedSetup.swift
index edce4b8e5..7a1ead2e1 100644
--- a/Sources/Frontend/GuidedSetup.swift
+++ b/Sources/Frontend/GuidedSetup.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 
 #if canImport(XcodeSupport)
diff --git a/Sources/Frontend/Logger+Extension.swift b/Sources/Frontend/Logger+Extension.swift
new file mode 100644
index 000000000..727fa395a
--- /dev/null
+++ b/Sources/Frontend/Logger+Extension.swift
@@ -0,0 +1,9 @@
+import Configuration
+import Logger
+
+public extension Logger {
+    @inlinable
+    convenience init(configuration: Configuration) {
+        self.init(quiet: configuration.quiet, verbose: configuration.verbose)
+    }
+}
diff --git a/Sources/Frontend/Project.swift b/Sources/Frontend/Project.swift
index ca1924635..1f4ba1b0b 100644
--- a/Sources/Frontend/Project.swift
+++ b/Sources/Frontend/Project.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import ProjectDrivers
 import Shared
 import SystemPackage
diff --git a/Sources/Frontend/SPMProjectSetupGuide.swift b/Sources/Frontend/SPMProjectSetupGuide.swift
index 8d2e7c5ec..e7ee15577 100644
--- a/Sources/Frontend/SPMProjectSetupGuide.swift
+++ b/Sources/Frontend/SPMProjectSetupGuide.swift
@@ -1,4 +1,5 @@
 import Foundation
+import ProjectDrivers
 import Shared
 import SystemPackage
 
diff --git a/Sources/Frontend/Scan.swift b/Sources/Frontend/Scan.swift
index 2a40a52b6..cfeee64f8 100644
--- a/Sources/Frontend/Scan.swift
+++ b/Sources/Frontend/Scan.swift
@@ -1,5 +1,7 @@
+import Configuration
 import Foundation
 import Indexer
+import Logger
 import PeripheryKit
 import ProjectDrivers
 import Shared
diff --git a/Sources/Frontend/UpdateChecker.swift b/Sources/Frontend/UpdateChecker.swift
index a8629d61f..9f74f0874 100644
--- a/Sources/Frontend/UpdateChecker.swift
+++ b/Sources/Frontend/UpdateChecker.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 
 #if canImport(FoundationNetworking)
diff --git a/Sources/Frontend/main.swift b/Sources/Frontend/main.swift
index 793f32931..afa301355 100644
--- a/Sources/Frontend/main.swift
+++ b/Sources/Frontend/main.swift
@@ -1,5 +1,6 @@
 import ArgumentParser
 import Foundation
+import Logger
 import Shared
 
 Logger.configureBuffering()
@@ -17,19 +18,24 @@ struct PeripheryCommand: FrontendCommand {
 }
 
 signal(SIGINT) { _ in
-    let logger = Logger(configuration: Configuration())
+    let logger = Logger()
     logger.warn(
         "Termination can result in a corrupt index. Try the '--clean-build' flag if you get erroneous results such as false-positives and incorrect source file locations.",
         newlinePrefix: true // Print a newline after ^C
     )
-    let shell = Shell(logger: logger)
-    shell.interruptRunning()
+    ShellProcessStore.shared.interruptRunning()
     exit(0)
 }
 
 do {
     var command = try PeripheryCommand.parseAsRoot()
-    try command.run()
+    do {
+        try command.run()
+    } catch let error as PeripheryError {
+        throw error
+    } catch {
+        throw PeripheryError.underlyingError(error)
+    }
 } catch {
     PeripheryCommand.exit(withError: error)
 }
diff --git a/Sources/Indexer/IndexPipeline.swift b/Sources/Indexer/IndexPipeline.swift
index c47d0313e..25fabafe4 100644
--- a/Sources/Indexer/IndexPipeline.swift
+++ b/Sources/Indexer/IndexPipeline.swift
@@ -1,5 +1,6 @@
+import Configuration
 import Foundation
-import Shared
+import Logger
 import SourceGraph
 
 public struct IndexPipeline {
diff --git a/Sources/Indexer/Indexer.swift b/Sources/Indexer/Indexer.swift
index 8bd993b43..2cc9a454b 100644
--- a/Sources/Indexer/Indexer.swift
+++ b/Sources/Indexer/Indexer.swift
@@ -1,6 +1,6 @@
+import Configuration
 import FilenameMatcher
 import Foundation
-import Shared
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/Indexer/InfoPlistIndexer.swift b/Sources/Indexer/InfoPlistIndexer.swift
index 0ebeffe23..28bfaffd1 100644
--- a/Sources/Indexer/InfoPlistIndexer.swift
+++ b/Sources/Indexer/InfoPlistIndexer.swift
@@ -1,3 +1,5 @@
+import Configuration
+import Logger
 import Shared
 import SourceGraph
 import SystemPackage
diff --git a/Sources/Indexer/InfoPlistParser.swift b/Sources/Indexer/InfoPlistParser.swift
index a6dac4d7e..e0cd21d0c 100644
--- a/Sources/Indexer/InfoPlistParser.swift
+++ b/Sources/Indexer/InfoPlistParser.swift
@@ -1,6 +1,5 @@
 import AEXML
 import Foundation
-import Shared
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/Indexer/SourceFileCollector.swift b/Sources/Indexer/SourceFileCollector.swift
index 85c008f3d..8df3b33c4 100644
--- a/Sources/Indexer/SourceFileCollector.swift
+++ b/Sources/Indexer/SourceFileCollector.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 import SourceGraph
 import SwiftIndexStore
diff --git a/Sources/Indexer/SwiftIndexer.swift b/Sources/Indexer/SwiftIndexer.swift
index b40dd8aa9..7adb442ff 100644
--- a/Sources/Indexer/SwiftIndexer.swift
+++ b/Sources/Indexer/SwiftIndexer.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 import SourceGraph
 import SwiftIndexStore
diff --git a/Sources/Indexer/XCDataModelIndexer.swift b/Sources/Indexer/XCDataModelIndexer.swift
index 25b4c46c7..57b1399a2 100644
--- a/Sources/Indexer/XCDataModelIndexer.swift
+++ b/Sources/Indexer/XCDataModelIndexer.swift
@@ -1,3 +1,5 @@
+import Configuration
+import Logger
 import Shared
 import SourceGraph
 import SystemPackage
diff --git a/Sources/Indexer/XCMappingModelIndexer.swift b/Sources/Indexer/XCMappingModelIndexer.swift
index 2439e33a6..8e72f0cf1 100644
--- a/Sources/Indexer/XCMappingModelIndexer.swift
+++ b/Sources/Indexer/XCMappingModelIndexer.swift
@@ -1,3 +1,5 @@
+import Configuration
+import Logger
 import Shared
 import SourceGraph
 import SystemPackage
diff --git a/Sources/Indexer/XibIndexer.swift b/Sources/Indexer/XibIndexer.swift
index 5d7b34e70..04e2d2d12 100644
--- a/Sources/Indexer/XibIndexer.swift
+++ b/Sources/Indexer/XibIndexer.swift
@@ -1,3 +1,5 @@
+import Configuration
+import Logger
 import Shared
 import SourceGraph
 import SystemPackage
diff --git a/Sources/Shared/Logger.swift b/Sources/Logger/Logger.swift
similarity index 92%
rename from Sources/Shared/Logger.swift
rename to Sources/Logger/Logger.swift
index f6fc4d510..ed664d6fe 100644
--- a/Sources/Shared/Logger.swift
+++ b/Sources/Logger/Logger.swift
@@ -49,16 +49,18 @@ public final class Logger {
         }
     }
 
-    @usableFromInline let configuration: Configuration
     @usableFromInline let outputQueue: DispatchQueue
+    @usableFromInline let quiet: Bool
+    @usableFromInline let verbose: Bool
 
     #if canImport(os)
         @usableFromInline let signposter = OSSignposter()
     #endif
 
     @inlinable
-    public required init(configuration: Configuration) {
-        self.configuration = configuration
+    public required init(quiet: Bool = false, verbose: Bool = false) {
+        self.quiet = quiet
+        self.verbose = verbose
         outputQueue = DispatchQueue(label: "Logger.outputQueue")
     }
 
@@ -69,19 +71,19 @@ public final class Logger {
 
     @inlinable
     public func info(_ text: String, canQuiet: Bool = true) {
-        guard !(configuration.quiet && canQuiet) else { return }
+        guard !(quiet && canQuiet) else { return }
         log(text, output: stdout)
     }
 
     @inlinable
     public func debug(_ text: String) {
-        guard configuration.verbose else { return }
+        guard verbose else { return }
         log(text, output: stdout)
     }
 
     @inlinable
     public func warn(_ text: String, newlinePrefix: Bool = false) {
-        guard !configuration.quiet else { return }
+        guard !quiet else { return }
         if newlinePrefix {
             log("", output: stderr)
         }
diff --git a/Sources/PeripheryKit/Results/CheckstyleFormatter.swift b/Sources/PeripheryKit/Results/CheckstyleFormatter.swift
index 706f76ed6..b334abfa3 100644
--- a/Sources/PeripheryKit/Results/CheckstyleFormatter.swift
+++ b/Sources/PeripheryKit/Results/CheckstyleFormatter.swift
@@ -1,5 +1,5 @@
+import Configuration
 import Foundation
-import Shared
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/PeripheryKit/Results/CodeClimateFormatter.swift b/Sources/PeripheryKit/Results/CodeClimateFormatter.swift
index c3400ce79..7fcd54acc 100644
--- a/Sources/PeripheryKit/Results/CodeClimateFormatter.swift
+++ b/Sources/PeripheryKit/Results/CodeClimateFormatter.swift
@@ -1,5 +1,5 @@
+import Configuration
 import Foundation
-import Shared
 import SystemPackage
 
 final class CodeClimateFormatter: OutputFormatter {
diff --git a/Sources/PeripheryKit/Results/CsvFormatter.swift b/Sources/PeripheryKit/Results/CsvFormatter.swift
index 07d082279..93fdee6af 100644
--- a/Sources/PeripheryKit/Results/CsvFormatter.swift
+++ b/Sources/PeripheryKit/Results/CsvFormatter.swift
@@ -1,5 +1,5 @@
+import Configuration
 import Foundation
-import Shared
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/PeripheryKit/Results/GitHubActionsFormatter.swift b/Sources/PeripheryKit/Results/GitHubActionsFormatter.swift
index b20af84d7..f855b0a29 100644
--- a/Sources/PeripheryKit/Results/GitHubActionsFormatter.swift
+++ b/Sources/PeripheryKit/Results/GitHubActionsFormatter.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 import SourceGraph
diff --git a/Sources/PeripheryKit/Results/JsonFormatter.swift b/Sources/PeripheryKit/Results/JsonFormatter.swift
index 5e802d5a5..9bce7491b 100644
--- a/Sources/PeripheryKit/Results/JsonFormatter.swift
+++ b/Sources/PeripheryKit/Results/JsonFormatter.swift
@@ -1,5 +1,5 @@
+import Configuration
 import Foundation
-import Shared
 import SystemPackage
 
 final class JsonFormatter: OutputFormatter {
diff --git a/Sources/PeripheryKit/Results/OutputDeclarationFilter.swift b/Sources/PeripheryKit/Results/OutputDeclarationFilter.swift
index bce83a782..e7b936491 100644
--- a/Sources/PeripheryKit/Results/OutputDeclarationFilter.swift
+++ b/Sources/PeripheryKit/Results/OutputDeclarationFilter.swift
@@ -1,6 +1,7 @@
+import Configuration
 import FilenameMatcher
 import Foundation
-import Shared
+import Logger
 import SystemPackage
 
 public final class OutputDeclarationFilter {
diff --git a/Sources/PeripheryKit/Results/OutputFormatter.swift b/Sources/PeripheryKit/Results/OutputFormatter.swift
index d388f9c4f..3403060e4 100644
--- a/Sources/PeripheryKit/Results/OutputFormatter.swift
+++ b/Sources/PeripheryKit/Results/OutputFormatter.swift
@@ -1,5 +1,6 @@
+import Configuration
 import Foundation
-import Shared
+import Logger
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/PeripheryKit/Results/XcodeFormatter.swift b/Sources/PeripheryKit/Results/XcodeFormatter.swift
index 674d1fcdd..0bed933b7 100644
--- a/Sources/PeripheryKit/Results/XcodeFormatter.swift
+++ b/Sources/PeripheryKit/Results/XcodeFormatter.swift
@@ -1,5 +1,6 @@
+import Configuration
 import Foundation
-import Shared
+import Logger
 import SourceGraph
 import SystemPackage
 
diff --git a/Sources/ProjectDrivers/BazelProjectDriver.swift b/Sources/ProjectDrivers/BazelProjectDriver.swift
index 5d212a66c..640eab1de 100644
--- a/Sources/ProjectDrivers/BazelProjectDriver.swift
+++ b/Sources/ProjectDrivers/BazelProjectDriver.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 import SystemPackage
 
diff --git a/Sources/ProjectDrivers/GenericProjectDriver.swift b/Sources/ProjectDrivers/GenericProjectDriver.swift
index 4b2f1a883..6807e3643 100644
--- a/Sources/ProjectDrivers/GenericProjectDriver.swift
+++ b/Sources/ProjectDrivers/GenericProjectDriver.swift
@@ -1,5 +1,7 @@
+import Configuration
 import Foundation
 import Indexer
+import Logger
 import Shared
 import SwiftIndexStore
 import SystemPackage
diff --git a/Sources/ProjectDrivers/ProjectDriver.swift b/Sources/ProjectDrivers/ProjectDriver.swift
index 7a439ea96..0c4acc4e6 100644
--- a/Sources/ProjectDrivers/ProjectDriver.swift
+++ b/Sources/ProjectDrivers/ProjectDriver.swift
@@ -1,6 +1,6 @@
 import Foundation
 import Indexer
-import Shared
+import Logger
 import SwiftIndexStore
 
 public protocol ProjectDriver {
diff --git a/Sources/Shared/SPM.swift b/Sources/ProjectDrivers/SPM.swift
similarity index 96%
rename from Sources/Shared/SPM.swift
rename to Sources/ProjectDrivers/SPM.swift
index a15c0b172..3afb262fe 100644
--- a/Sources/Shared/SPM.swift
+++ b/Sources/ProjectDrivers/SPM.swift
@@ -1,4 +1,8 @@
+import Configuration
+import Extensions
 import Foundation
+import Logger
+import Shared
 import SystemPackage
 
 public enum SPM {
diff --git a/Sources/ProjectDrivers/SPMProjectDriver.swift b/Sources/ProjectDrivers/SPMProjectDriver.swift
index 520831699..c2508a8bc 100644
--- a/Sources/ProjectDrivers/SPMProjectDriver.swift
+++ b/Sources/ProjectDrivers/SPMProjectDriver.swift
@@ -1,5 +1,7 @@
+import Configuration
 import Foundation
 import Indexer
+import Logger
 import Shared
 import SwiftIndexStore
 import SystemPackage
diff --git a/Sources/ProjectDrivers/XcodeProjectDriver.swift b/Sources/ProjectDrivers/XcodeProjectDriver.swift
index 77a6ca2d3..e46e71eab 100644
--- a/Sources/ProjectDrivers/XcodeProjectDriver.swift
+++ b/Sources/ProjectDrivers/XcodeProjectDriver.swift
@@ -1,6 +1,8 @@
 #if os(macOS)
+    import Configuration
     import Foundation
     import Indexer
+    import Logger
     import Shared
     import SourceGraph
     import SystemPackage
diff --git a/Sources/Shared/PropertyTypeSanitizer.swift b/Sources/Shared/PropertyTypeSanitizer.swift
index d87e50419..01f2aaae9 100644
--- a/Sources/Shared/PropertyTypeSanitizer.swift
+++ b/Sources/Shared/PropertyTypeSanitizer.swift
@@ -1,12 +1,7 @@
+import Extensions
 import Foundation
 
 public enum PropertyTypeSanitizer {
-    @inlinable
-    public static func sanitize(_ value: Any) -> [String]? {
-        guard let typedValue = value as? [String] else { return nil }
-        return typedValue.map { sanitize($0) }
-    }
-
     @inlinable
     public static func sanitize(_ type: String) -> String {
         type.trimmed.trimmingCharacters(in: .init(["?", "!"]))
diff --git a/Sources/Shared/SetupGuide.swift b/Sources/Shared/SetupGuide.swift
index 21e43b561..08a471001 100644
--- a/Sources/Shared/SetupGuide.swift
+++ b/Sources/Shared/SetupGuide.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Logger
 
 public protocol SetupGuide {
     func perform() throws -> ProjectKind
diff --git a/Sources/Shared/Shell.swift b/Sources/Shared/Shell.swift
index d2c7339e4..ae27c4ea1 100644
--- a/Sources/Shared/Shell.swift
+++ b/Sources/Shared/Shell.swift
@@ -1,9 +1,31 @@
 import Foundation
+import Logger
 
-open class Shell {
-    private var tasks: Set<Process> = []
-    private var tasksQueue = DispatchQueue(label: "Shell.tasksQueue")
+public class ShellProcessStore {
+    public static let shared = ShellProcessStore()
+
+    private var processes: Set<Process> = []
+    private let lock = UnfairLock()
+
+    public func interruptRunning() {
+        lock.perform {
+            for process in processes {
+                process.interrupt()
+                process.waitUntilExit()
+            }
+        }
+    }
+
+    func add(_ process: Process) {
+        lock.perform { _ = processes.insert(process) }
+    }
 
+    func remove(_ process: Process) {
+        lock.perform { _ = processes.remove(process) }
+    }
+}
+
+open class Shell {
     private let environment: [String: String]
     private let logger: ContextualLogger
 
@@ -16,15 +38,6 @@ open class Shell {
         self.logger = logger.contextualized(with: "shell")
     }
 
-    public func interruptRunning() {
-        tasksQueue.sync {
-            for task in tasks {
-                task.interrupt()
-                task.waitUntilExit()
-            }
-        }
-    }
-
     lazy var pristineEnvironment: [String: String] = {
         let shell = environment["SHELL"] ?? "/bin/bash"
         guard let pristineEnv = try? exec([shell, "-lc", "env"], environment: [:]).1 else {
@@ -98,23 +111,23 @@ open class Shell {
             newArgs = args
         }
 
-        let task = Process()
-        task.launchPath = launchPath
-        task.environment = environment
-        task.arguments = newArgs
+        let process = Process()
+        process.launchPath = launchPath
+        process.environment = environment
+        process.arguments = newArgs
 
         logger.debug("\(launchPath) \(newArgs.joined(separator: " "))")
-        tasksQueue.sync { _ = tasks.insert(task) }
+        ShellProcessStore.shared.add(process)
 
         var outputPipe: Pipe?
 
         if captureOutput {
             outputPipe = Pipe()
-            task.standardOutput = outputPipe
-            task.standardError = stderr ? outputPipe : nil
+            process.standardOutput = outputPipe
+            process.standardError = stderr ? outputPipe : nil
         }
 
-        task.launch()
+        process.launch()
 
         var output = ""
 
@@ -122,7 +135,7 @@ open class Shell {
            let outputData = try outputPipe.fileHandleForReading.readToEnd()
         {
             guard let str = String(data: outputData, encoding: .utf8) else {
-                tasksQueue.sync { _ = tasks.remove(task) }
+                ShellProcessStore.shared.remove(process)
                 throw PeripheryError.shellOutputEncodingFailed(
                     cmd: launchPath,
                     args: newArgs,
@@ -132,8 +145,8 @@ open class Shell {
             output = str
         }
 
-        task.waitUntilExit()
-        tasksQueue.sync { _ = tasks.remove(task) }
-        return (task.terminationStatus, output)
+        process.waitUntilExit()
+        ShellProcessStore.shared.remove(process)
+        return (process.terminationStatus, output)
     }
 }
diff --git a/Sources/Shared/SwiftVersion.swift b/Sources/Shared/SwiftVersion.swift
index 110f95893..974502cb1 100644
--- a/Sources/Shared/SwiftVersion.swift
+++ b/Sources/Shared/SwiftVersion.swift
@@ -1,3 +1,4 @@
+import Extensions
 import Foundation
 
 public struct SwiftVersion {
diff --git a/Sources/Shared/SwiftVersionParser.swift b/Sources/Shared/SwiftVersionParser.swift
index ad484c00e..c9d12d840 100644
--- a/Sources/Shared/SwiftVersionParser.swift
+++ b/Sources/Shared/SwiftVersionParser.swift
@@ -1,3 +1,4 @@
+import Extensions
 import Foundation
 
 enum SwiftVersionParser {
diff --git a/Sources/SourceGraph/Mutators/AccessibilityCascader.swift b/Sources/SourceGraph/Mutators/AccessibilityCascader.swift
index bb8feed12..de8acea12 100644
--- a/Sources/SourceGraph/Mutators/AccessibilityCascader.swift
+++ b/Sources/SourceGraph/Mutators/AccessibilityCascader.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/AncestralReferenceEliminator.swift b/Sources/SourceGraph/Mutators/AncestralReferenceEliminator.swift
index a4ffd7eeb..bd50674e3 100644
--- a/Sources/SourceGraph/Mutators/AncestralReferenceEliminator.swift
+++ b/Sources/SourceGraph/Mutators/AncestralReferenceEliminator.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/AssetReferenceRetainer.swift b/Sources/SourceGraph/Mutators/AssetReferenceRetainer.swift
index 08237e0e5..4b1d6d61f 100644
--- a/Sources/SourceGraph/Mutators/AssetReferenceRetainer.swift
+++ b/Sources/SourceGraph/Mutators/AssetReferenceRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/AssignOnlyPropertyReferenceEliminator.swift b/Sources/SourceGraph/Mutators/AssignOnlyPropertyReferenceEliminator.swift
index e14fc2be3..37a352dd6 100644
--- a/Sources/SourceGraph/Mutators/AssignOnlyPropertyReferenceEliminator.swift
+++ b/Sources/SourceGraph/Mutators/AssignOnlyPropertyReferenceEliminator.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
@@ -11,7 +12,9 @@ final class AssignOnlyPropertyReferenceEliminator: SourceGraphMutator {
     required init(graph: SourceGraph, configuration: Configuration, swiftVersion _: SwiftVersion) {
         self.graph = graph
         self.configuration = configuration
-        retainAssignOnlyPropertyTypes = defaultRetainedTypes + configuration.retainAssignOnlyPropertyTypes
+        retainAssignOnlyPropertyTypes = defaultRetainedTypes + configuration.retainAssignOnlyPropertyTypes.map {
+            PropertyTypeSanitizer.sanitize($0)
+        }
     }
 
     func mutate() throws {
diff --git a/Sources/SourceGraph/Mutators/CapitalSelfFunctionCallRetainer.swift b/Sources/SourceGraph/Mutators/CapitalSelfFunctionCallRetainer.swift
index 24c62f482..638b9faa9 100644
--- a/Sources/SourceGraph/Mutators/CapitalSelfFunctionCallRetainer.swift
+++ b/Sources/SourceGraph/Mutators/CapitalSelfFunctionCallRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/CodablePropertyRetainer.swift b/Sources/SourceGraph/Mutators/CodablePropertyRetainer.swift
index 485cf7ae5..354341355 100644
--- a/Sources/SourceGraph/Mutators/CodablePropertyRetainer.swift
+++ b/Sources/SourceGraph/Mutators/CodablePropertyRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/CodingKeyEnumReferenceBuilder.swift b/Sources/SourceGraph/Mutators/CodingKeyEnumReferenceBuilder.swift
index 4b57d97ec..ae982b085 100644
--- a/Sources/SourceGraph/Mutators/CodingKeyEnumReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/CodingKeyEnumReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ComplexPropertyAccessorReferenceBuilder.swift b/Sources/SourceGraph/Mutators/ComplexPropertyAccessorReferenceBuilder.swift
index c616c4d4f..c2e6b05eb 100644
--- a/Sources/SourceGraph/Mutators/ComplexPropertyAccessorReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/ComplexPropertyAccessorReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/DefaultConstructorReferenceBuilder.swift b/Sources/SourceGraph/Mutators/DefaultConstructorReferenceBuilder.swift
index 49f69ab4a..27f165404 100644
--- a/Sources/SourceGraph/Mutators/DefaultConstructorReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/DefaultConstructorReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/DynamicMemberLookupReferenceBuilder.swift b/Sources/SourceGraph/Mutators/DynamicMemberLookupReferenceBuilder.swift
index a812ef4fc..d20dd3c35 100644
--- a/Sources/SourceGraph/Mutators/DynamicMemberLookupReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/DynamicMemberLookupReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/EntryPointAttributeRetainer.swift b/Sources/SourceGraph/Mutators/EntryPointAttributeRetainer.swift
index 47ea5f173..cace1285c 100644
--- a/Sources/SourceGraph/Mutators/EntryPointAttributeRetainer.swift
+++ b/Sources/SourceGraph/Mutators/EntryPointAttributeRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/EnumCaseReferenceBuilder.swift b/Sources/SourceGraph/Mutators/EnumCaseReferenceBuilder.swift
index 9bfff0e71..79414df2a 100644
--- a/Sources/SourceGraph/Mutators/EnumCaseReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/EnumCaseReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift b/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
index ebd9a61bc..ee7d4d1b9 100644
--- a/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ExternalTypeProtocolConformanceReferenceRemover.swift b/Sources/SourceGraph/Mutators/ExternalTypeProtocolConformanceReferenceRemover.swift
index adb61b7d5..40e1a3691 100644
--- a/Sources/SourceGraph/Mutators/ExternalTypeProtocolConformanceReferenceRemover.swift
+++ b/Sources/SourceGraph/Mutators/ExternalTypeProtocolConformanceReferenceRemover.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/GenericClassAndStructConstructorReferenceBuilder.swift b/Sources/SourceGraph/Mutators/GenericClassAndStructConstructorReferenceBuilder.swift
index 4bac17c0e..0f053bbaf 100644
--- a/Sources/SourceGraph/Mutators/GenericClassAndStructConstructorReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/GenericClassAndStructConstructorReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ObjCAccessibleRetainer.swift b/Sources/SourceGraph/Mutators/ObjCAccessibleRetainer.swift
index 6ee74e5fd..9fe023c7a 100644
--- a/Sources/SourceGraph/Mutators/ObjCAccessibleRetainer.swift
+++ b/Sources/SourceGraph/Mutators/ObjCAccessibleRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/PropertyWrapperRetainer.swift b/Sources/SourceGraph/Mutators/PropertyWrapperRetainer.swift
index 69e07e153..c6fbf7a30 100644
--- a/Sources/SourceGraph/Mutators/PropertyWrapperRetainer.swift
+++ b/Sources/SourceGraph/Mutators/PropertyWrapperRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ProtocolConformanceReferenceBuilder.swift b/Sources/SourceGraph/Mutators/ProtocolConformanceReferenceBuilder.swift
index dd0623335..7e3b68222 100644
--- a/Sources/SourceGraph/Mutators/ProtocolConformanceReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/ProtocolConformanceReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ProtocolExtensionReferenceBuilder.swift b/Sources/SourceGraph/Mutators/ProtocolExtensionReferenceBuilder.swift
index f93da5d76..8b479a5b4 100644
--- a/Sources/SourceGraph/Mutators/ProtocolExtensionReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/ProtocolExtensionReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/PubliclyAccessibleRetainer.swift b/Sources/SourceGraph/Mutators/PubliclyAccessibleRetainer.swift
index dfb97d2f2..55329ebcd 100644
--- a/Sources/SourceGraph/Mutators/PubliclyAccessibleRetainer.swift
+++ b/Sources/SourceGraph/Mutators/PubliclyAccessibleRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/RedundantExplicitPublicAccessibilityMarker.swift b/Sources/SourceGraph/Mutators/RedundantExplicitPublicAccessibilityMarker.swift
index 9e7ef3914..c4173d676 100644
--- a/Sources/SourceGraph/Mutators/RedundantExplicitPublicAccessibilityMarker.swift
+++ b/Sources/SourceGraph/Mutators/RedundantExplicitPublicAccessibilityMarker.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Shared
 
 final class RedundantExplicitPublicAccessibilityMarker: SourceGraphMutator {
diff --git a/Sources/SourceGraph/Mutators/RedundantProtocolMarker.swift b/Sources/SourceGraph/Mutators/RedundantProtocolMarker.swift
index 49ad3f128..f36a8667d 100644
--- a/Sources/SourceGraph/Mutators/RedundantProtocolMarker.swift
+++ b/Sources/SourceGraph/Mutators/RedundantProtocolMarker.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/ResultBuilderRetainer.swift b/Sources/SourceGraph/Mutators/ResultBuilderRetainer.swift
index 04915b994..e5ef18c8e 100644
--- a/Sources/SourceGraph/Mutators/ResultBuilderRetainer.swift
+++ b/Sources/SourceGraph/Mutators/ResultBuilderRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/StringInterpolationAppendInterpolationRetainer.swift b/Sources/SourceGraph/Mutators/StringInterpolationAppendInterpolationRetainer.swift
index 96e64714c..99be47a61 100644
--- a/Sources/SourceGraph/Mutators/StringInterpolationAppendInterpolationRetainer.swift
+++ b/Sources/SourceGraph/Mutators/StringInterpolationAppendInterpolationRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/StructImplicitInitializerReferenceBuilder.swift b/Sources/SourceGraph/Mutators/StructImplicitInitializerReferenceBuilder.swift
index fb793d19c..e55ba9512 100644
--- a/Sources/SourceGraph/Mutators/StructImplicitInitializerReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/StructImplicitInitializerReferenceBuilder.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/SwiftUIRetainer.swift b/Sources/SourceGraph/Mutators/SwiftUIRetainer.swift
index a76fec8c7..17e1134c2 100644
--- a/Sources/SourceGraph/Mutators/SwiftUIRetainer.swift
+++ b/Sources/SourceGraph/Mutators/SwiftUIRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/UnusedImportMarker.swift b/Sources/SourceGraph/Mutators/UnusedImportMarker.swift
index 4359800f4..0a48fb14f 100644
--- a/Sources/SourceGraph/Mutators/UnusedImportMarker.swift
+++ b/Sources/SourceGraph/Mutators/UnusedImportMarker.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/UnusedParameterRetainer.swift b/Sources/SourceGraph/Mutators/UnusedParameterRetainer.swift
index 68d22c559..383186c65 100644
--- a/Sources/SourceGraph/Mutators/UnusedParameterRetainer.swift
+++ b/Sources/SourceGraph/Mutators/UnusedParameterRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/UsedDeclarationMarker.swift b/Sources/SourceGraph/Mutators/UsedDeclarationMarker.swift
index 852ef82c0..a54b79564 100644
--- a/Sources/SourceGraph/Mutators/UsedDeclarationMarker.swift
+++ b/Sources/SourceGraph/Mutators/UsedDeclarationMarker.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/Mutators/XCTestRetainer.swift b/Sources/SourceGraph/Mutators/XCTestRetainer.swift
index 057bee7cf..53f595cf6 100644
--- a/Sources/SourceGraph/Mutators/XCTestRetainer.swift
+++ b/Sources/SourceGraph/Mutators/XCTestRetainer.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/SourceGraph.swift b/Sources/SourceGraph/SourceGraph.swift
index 010b5f805..65ecd535d 100644
--- a/Sources/SourceGraph/SourceGraph.swift
+++ b/Sources/SourceGraph/SourceGraph.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/SourceGraphMutator.swift b/Sources/SourceGraph/SourceGraphMutator.swift
index 8cde225a3..194386417 100644
--- a/Sources/SourceGraph/SourceGraphMutator.swift
+++ b/Sources/SourceGraph/SourceGraphMutator.swift
@@ -1,3 +1,4 @@
+import Configuration
 import Foundation
 import Shared
 
diff --git a/Sources/SourceGraph/SourceGraphMutatorRunner.swift b/Sources/SourceGraph/SourceGraphMutatorRunner.swift
index 7b4508721..71b9025ad 100644
--- a/Sources/SourceGraph/SourceGraphMutatorRunner.swift
+++ b/Sources/SourceGraph/SourceGraphMutatorRunner.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 
 public final class SourceGraphMutatorRunner {
diff --git a/Sources/XcodeSupport/XcodeProject.swift b/Sources/XcodeSupport/XcodeProject.swift
index 80d593f0c..173cd68f9 100644
--- a/Sources/XcodeSupport/XcodeProject.swift
+++ b/Sources/XcodeSupport/XcodeProject.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Logger
 import Shared
 import SystemPackage
 import XcodeProj
diff --git a/Sources/XcodeSupport/XcodeProjectSetupGuide.swift b/Sources/XcodeSupport/XcodeProjectSetupGuide.swift
index 53abef853..825493f54 100644
--- a/Sources/XcodeSupport/XcodeProjectSetupGuide.swift
+++ b/Sources/XcodeSupport/XcodeProjectSetupGuide.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 import SystemPackage
 
diff --git a/Sources/XcodeSupport/XcodeWorkspace.swift b/Sources/XcodeSupport/XcodeWorkspace.swift
index 65a49d944..b6faea57c 100644
--- a/Sources/XcodeSupport/XcodeWorkspace.swift
+++ b/Sources/XcodeSupport/XcodeWorkspace.swift
@@ -1,4 +1,6 @@
+import Configuration
 import Foundation
+import Logger
 import Shared
 import SystemPackage
 import XcodeProj
diff --git a/Sources/XcodeSupport/Xcodebuild.swift b/Sources/XcodeSupport/Xcodebuild.swift
index e15969b31..92ed1d310 100644
--- a/Sources/XcodeSupport/Xcodebuild.swift
+++ b/Sources/XcodeSupport/Xcodebuild.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Logger
 import Shared
 import SystemPackage
 
diff --git a/Tests/PeripheryTests/Extensions/FilePathGlobTest.swift b/Tests/PeripheryTests/Extensions/FilePathGlobTest.swift
index a0f2e546b..16b3699ba 100644
--- a/Tests/PeripheryTests/Extensions/FilePathGlobTest.swift
+++ b/Tests/PeripheryTests/Extensions/FilePathGlobTest.swift
@@ -1,4 +1,3 @@
-import Shared
 import SystemPackage
 import XCTest
 
diff --git a/Tests/PeripheryTests/Extensions/FilenameMatcherTests.swift b/Tests/PeripheryTests/Extensions/FilenameMatcherTests.swift
index 2efc42d06..9441e2b69 100644
--- a/Tests/PeripheryTests/Extensions/FilenameMatcherTests.swift
+++ b/Tests/PeripheryTests/Extensions/FilenameMatcherTests.swift
@@ -1,6 +1,5 @@
 import FilenameMatcher
 import Foundation
-import Shared
 import XCTest
 
 final class FilenameMatcherTests: XCTestCase {
diff --git a/Tests/PeripheryTests/RetentionTest.swift b/Tests/PeripheryTests/RetentionTest.swift
index 4c326372d..0b5d6d687 100644
--- a/Tests/PeripheryTests/RetentionTest.swift
+++ b/Tests/PeripheryTests/RetentionTest.swift
@@ -1,4 +1,3 @@
-import Shared
 import SystemPackage
 @testable import TestShared
 import XCTest
diff --git a/Tests/PeripheryTests/ShellTest.swift b/Tests/PeripheryTests/ShellTest.swift
index 2adb009ac..ab2afd882 100644
--- a/Tests/PeripheryTests/ShellTest.swift
+++ b/Tests/PeripheryTests/ShellTest.swift
@@ -1,3 +1,4 @@
+import Logger
 @testable import Shared
 import XCTest
 
@@ -9,8 +10,7 @@ final class ShellTest: XCTestCase {
             "PATH": path,
             "DEVELOPER_DIR": developerDir,
         ]
-        let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
+        let logger = Logger(quiet: true)
         let shell = Shell(environment: environment, logger: logger)
         XCTAssertEqual(shell.pristineEnvironment["PATH"], path)
         XCTAssertEqual(shell.pristineEnvironment["DEVELOPER_DIR"], developerDir)
diff --git a/Tests/Shared/SPMSourceGraphTestCase.swift b/Tests/Shared/SPMSourceGraphTestCase.swift
index 4eec86920..f51069a33 100644
--- a/Tests/Shared/SPMSourceGraphTestCase.swift
+++ b/Tests/Shared/SPMSourceGraphTestCase.swift
@@ -1,6 +1,5 @@
 import Foundation
 import ProjectDrivers
-import Shared
 import SystemPackage
 
 class SPMSourceGraphTestCase: SourceGraphTestCase {
diff --git a/Tests/Shared/SourceGraphTestCase.swift b/Tests/Shared/SourceGraphTestCase.swift
index 899ddebf2..a3c1aa770 100644
--- a/Tests/Shared/SourceGraphTestCase.swift
+++ b/Tests/Shared/SourceGraphTestCase.swift
@@ -1,4 +1,6 @@
+import Configuration
 @testable import Indexer
+import Logger
 @testable import PeripheryKit
 import Shared
 @testable import SourceGraph
@@ -23,7 +25,7 @@ open class SourceGraphTestCase: XCTestCase {
         super.setUp()
         configuration = Configuration()
         configuration.quiet = true
-        logger = Logger(configuration: configuration)
+        logger = Logger(quiet: true)
         shell = Shell(logger: logger)
         graph = SourceGraph(configuration: configuration)
     }
diff --git a/Tests/XcodeTests/ShellMock.swift b/Tests/XcodeTests/ShellMock.swift
index 045825df2..0ae7918d6 100644
--- a/Tests/XcodeTests/ShellMock.swift
+++ b/Tests/XcodeTests/ShellMock.swift
@@ -1,12 +1,12 @@
 import Foundation
+import Logger
 import Shared
 
 class ShellMock: Shell {
     var output: String = ""
 
     convenience init() {
-        let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
+        let logger = Logger(quiet: true)
         self.init(environment: ProcessInfo.processInfo.environment, logger: logger)
     }
 
diff --git a/Tests/XcodeTests/XcodeSourceGraphTestCase.swift b/Tests/XcodeTests/XcodeSourceGraphTestCase.swift
index 7442172c7..104087cb5 100644
--- a/Tests/XcodeTests/XcodeSourceGraphTestCase.swift
+++ b/Tests/XcodeTests/XcodeSourceGraphTestCase.swift
@@ -1,6 +1,5 @@
 import Foundation
 import ProjectDrivers
-import Shared
 import SystemPackage
 @testable import TestShared
 
diff --git a/Tests/XcodeTests/XcodeTargetTest.swift b/Tests/XcodeTests/XcodeTargetTest.swift
index d28a5cd23..b8f2fb779 100644
--- a/Tests/XcodeTests/XcodeTargetTest.swift
+++ b/Tests/XcodeTests/XcodeTargetTest.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Logger
 import Shared
 @testable import TestShared
 @testable import XcodeSupport
@@ -9,8 +10,7 @@ final class XcodeTargetTest: XCTestCase {
 
     override func setUp() {
         super.setUp()
-        let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
+        let logger = Logger(quiet: true)
         let shell = Shell(logger: logger)
         let xcodebuild = Xcodebuild(shell: shell, logger: logger)
         project = try! XcodeProject(
diff --git a/Tests/XcodeTests/XcodebuildBuildProjectTest.swift b/Tests/XcodeTests/XcodebuildBuildProjectTest.swift
index 5166e6b1c..8e8f8144c 100644
--- a/Tests/XcodeTests/XcodebuildBuildProjectTest.swift
+++ b/Tests/XcodeTests/XcodebuildBuildProjectTest.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Logger
 import Shared
 @testable import XcodeSupport
 import XCTest
@@ -10,8 +11,7 @@ final class XcodebuildBuildProjectTest: XCTestCase {
     override func setUp() {
         super.setUp()
 
-        let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
+        let logger = Logger(quiet: true)
         let shell = Shell(logger: logger)
         xcodebuild = Xcodebuild(shell: shell, logger: logger)
         project = try! XcodeProject(path: UIKitProjectPath, xcodebuild: xcodebuild, shell: shell, logger: logger)
diff --git a/Tests/XcodeTests/XcodebuildSchemesTest.swift b/Tests/XcodeTests/XcodebuildSchemesTest.swift
index 3a7821b8b..5fb3bebfb 100644
--- a/Tests/XcodeTests/XcodebuildSchemesTest.swift
+++ b/Tests/XcodeTests/XcodebuildSchemesTest.swift
@@ -1,5 +1,5 @@
 import Foundation
-import Shared
+import Logger
 @testable import XcodeSupport
 import XCTest
 
@@ -12,8 +12,7 @@ final class XcodebuildSchemesTest: XCTestCase {
         super.setUp()
 
         shell = ShellMock()
-        let configuration = Configuration()
-        let logger = Logger(configuration: configuration)
+        let logger = Logger(quiet: true)
         xcodebuild = Xcodebuild(shell: shell, logger: logger)
         project = try! XcodeProject(path: UIKitProjectPath, xcodebuild: xcodebuild, shell: shell, logger: logger)
     }