diff --git a/Sources/Merge/Intramodular/Console/_StandardOutputRewriter.swift b/Sources/Merge/Intramodular/Console/_StandardOutputRewriter.swift
index 8879cbd..3236a9e 100644
--- a/Sources/Merge/Intramodular/Console/_StandardOutputRewriter.swift
+++ b/Sources/Merge/Intramodular/Console/_StandardOutputRewriter.swift
@@ -6,12 +6,12 @@ import Darwin
 import Foundation
 import Swift
 
-public class _StandardOutputRewriter {
+public class _StandardOutputRewriter: @unchecked Sendable {
     private var originalSTDOUTDescriptor: Int32 = -1
     private var originalSTDERRDescriptor: Int32 = -1
     private let stdoutPipe: Pipe = Pipe()
     private let stderrPipe: Pipe = Pipe()
-    private let modifyLine: (String) -> String?
+    private let modifyLine: @Sendable (String) -> String?
     
     private var stdoutBuffer = Data()
     private var stderrBuffer = Data()
@@ -21,7 +21,9 @@ public class _StandardOutputRewriter {
     private var stopContinuation: CheckedContinuation<Void, Never>?
     private let hasRunLoop: Bool
     
-    public init(modifyLine: @escaping (String) -> String?) {
+    public init(
+        modifyLine: @escaping @Sendable (String) -> String?
+    ) {
         self.modifyLine = modifyLine
         self.hasRunLoop = _StandardOutputRewriter.checkRunLoopAvailability()
 
diff --git a/Sources/ShellScripting/Intramodular/Process+sh.swift b/Sources/ShellScripting/Intramodular/Process+sh.swift
index fe00d81..f783f68 100644
--- a/Sources/ShellScripting/Intramodular/Process+sh.swift
+++ b/Sources/ShellScripting/Intramodular/Process+sh.swift
@@ -173,6 +173,7 @@ public func shq(
     ._runAsynchronouslyRedirectingAllOutput(to: sink)
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     _ cmd: String,
@@ -184,6 +185,7 @@ public func sh(
     return try shq(cmd, environment: environment, workingDirectory: workingDirectory)
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     _ cmd: String,
@@ -195,6 +197,7 @@ public func sh(
     return try await shq(cmd, environment: environment, workingDirectory: workingDirectory)
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     command: String,
@@ -208,6 +211,7 @@ public func sh(
     )
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     _ sink: Process.StandardOutputSink,
@@ -223,6 +227,7 @@ public func sh(
     )
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     _ cmd: String,
@@ -238,6 +243,7 @@ public func sh(
     )
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh<D: Decodable>(
     _ type: D.Type,
@@ -257,6 +263,7 @@ public func sh<D: Decodable>(
     )
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh<D: Decodable>(
     _ type: D.Type,
@@ -276,6 +283,7 @@ public func sh<D: Decodable>(
     )
 }
 
+@available(*, deprecated)
 @available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
 public func sh(
     _ sink: Process.StandardOutputSink,