diff --git a/ReerKit.xcodeproj/project.pbxproj b/ReerKit.xcodeproj/project.pbxproj
index 2b30abe..cef62d9 100644
--- a/ReerKit.xcodeproj/project.pbxproj
+++ b/ReerKit.xcodeproj/project.pbxproj
@@ -677,6 +677,11 @@
 		D094C96229F4606600491CD8 /* UIDeviceExtensionsTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D094C96129F4606600491CD8 /* UIDeviceExtensionsTests.swift */; };
 		D094C96429F4631200491CD8 /* Memory.swift in Sources */ = {isa = PBXBuildFile; fileRef = D094C96329F4631200491CD8 /* Memory.swift */; };
 		D094C96629F46A0C00491CD8 /* MemoryTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D094C96529F46A0C00491CD8 /* MemoryTests.swift */; };
+		D0991CB22CBA56C100C6BE5A /* MutexLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0991CB12CBA56C100C6BE5A /* MutexLock.swift */; };
+		D0991CB32CBA56C100C6BE5A /* MutexLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0991CB12CBA56C100C6BE5A /* MutexLock.swift */; };
+		D0991CB42CBA56C100C6BE5A /* MutexLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0991CB12CBA56C100C6BE5A /* MutexLock.swift */; };
+		D0991CB52CBA56C100C6BE5A /* MutexLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0991CB12CBA56C100C6BE5A /* MutexLock.swift */; };
+		D0991CB62CBA56C100C6BE5A /* MutexLock.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0991CB12CBA56C100C6BE5A /* MutexLock.swift */; };
 		D09D724029DC94BF00636935 /* big_buck_bunny_720p_1mb.mp4 in Resources */ = {isa = PBXBuildFile; fileRef = D09D723F29DC94BF00636935 /* big_buck_bunny_720p_1mb.mp4 */; };
 		D0A0040628620D9900D2FA7C /* TypeNameDescribableTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0A0040528620D9900D2FA7C /* TypeNameDescribableTests.swift */; };
 		D0A6B3A32924AD11008B7FDA /* UIResponder+REExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = D0A6B3A22924AD11008B7FDA /* UIResponder+REExtensions.swift */; };
@@ -992,6 +997,7 @@
 		D094C96129F4606600491CD8 /* UIDeviceExtensionsTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIDeviceExtensionsTests.swift; sourceTree = "<group>"; };
 		D094C96329F4631200491CD8 /* Memory.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Memory.swift; sourceTree = "<group>"; };
 		D094C96529F46A0C00491CD8 /* MemoryTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MemoryTests.swift; sourceTree = "<group>"; };
+		D0991CB12CBA56C100C6BE5A /* MutexLock.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MutexLock.swift; sourceTree = "<group>"; };
 		D09D723F29DC94BF00636935 /* big_buck_bunny_720p_1mb.mp4 */ = {isa = PBXFileReference; lastKnownFileType = file; path = big_buck_bunny_720p_1mb.mp4; sourceTree = "<group>"; };
 		D0A0040528620D9900D2FA7C /* TypeNameDescribableTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TypeNameDescribableTests.swift; sourceTree = "<group>"; };
 		D0A6B3A22924AD11008B7FDA /* UIResponder+REExtensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIResponder+REExtensions.swift"; sourceTree = "<group>"; };
@@ -1312,6 +1318,7 @@
 				D0038B7E2856581600A890F9 /* UnfairLock.swift */,
 				D0038B8028565B9400A890F9 /* ReadWriteLock.swift */,
 				D004CC48285A41F500C41360 /* Synchronizing.swift */,
+				D0991CB12CBA56C100C6BE5A /* MutexLock.swift */,
 			);
 			path = Lock;
 			sourceTree = "<group>";
@@ -2160,6 +2167,7 @@
 				D01D6DCE2A06CBE000AEDA3D /* Vibrator.swift in Sources */,
 				D0D311392AB8522F00E54361 /* Rounded.swift in Sources */,
 				D04B85DC29F9A50600177357 /* Throttler.swift in Sources */,
+				D0991CB32CBA56C100C6BE5A /* MutexLock.swift in Sources */,
 				D04B861029F9A59600177357 /* UIViewController+REExtensions.swift in Sources */,
 				D04B85DD29F9A50600177357 /* Debouncer.swift in Sources */,
 				D04B861929F9A59600177357 /* UITableView+REExtensions.swift in Sources */,
@@ -2307,6 +2315,7 @@
 				D01D6DCF2A06CBE000AEDA3D /* Vibrator.swift in Sources */,
 				D0D3113A2AB8522F00E54361 /* Rounded.swift in Sources */,
 				D04B86F929F9A71100177357 /* URLRequest+REExtensions.swift in Sources */,
+				D0991CB42CBA56C100C6BE5A /* MutexLock.swift in Sources */,
 				D04B868029F9A6D900177357 /* Color+REExtensions.swift in Sources */,
 				D04B86BC29F9A6FC00177357 /* WeakProxy.swift in Sources */,
 				D04B872929F9A71900177357 /* UIResponder+REExtensions.swift in Sources */,
@@ -2453,6 +2462,7 @@
 				D01D6DD02A06CBE000AEDA3D /* Vibrator.swift in Sources */,
 				D0D3113B2AB8522F00E54361 /* Rounded.swift in Sources */,
 				D04B86EB29F9A71000177357 /* URLRequest+REExtensions.swift in Sources */,
+				D0991CB52CBA56C100C6BE5A /* MutexLock.swift in Sources */,
 				D04B867D29F9A6D800177357 /* Color+REExtensions.swift in Sources */,
 				D04B86C029F9A6FD00177357 /* WeakProxy.swift in Sources */,
 				D04B870829F9A71900177357 /* UIResponder+REExtensions.swift in Sources */,
@@ -2504,6 +2514,7 @@
 				D0185A7A2C7F501900100E3E /* NanoID.swift in Sources */,
 				D0185A7B2C7F501900100E3E /* Reachability.swift in Sources */,
 				D0185A7C2C7F501900100E3E /* GlobalFunctions.swift in Sources */,
+				D0991CB62CBA56C100C6BE5A /* MutexLock.swift in Sources */,
 				D0185A7D2C7F501900100E3E /* RETimer.swift in Sources */,
 				D0185A7E2C7F501900100E3E /* Invocation.swift in Sources */,
 				D0185A7F2C7F501900100E3E /* CountdownTimer.swift in Sources */,
@@ -2766,6 +2777,7 @@
 				D0D311242AB4458F00E54361 /* CALayer+REExtensions.swift in Sources */,
 				D0B1211E2855156200B5B326 /* TypeNameDescribable.swift in Sources */,
 				D07E53AF2883137000921873 /* WeakProxy.swift in Sources */,
+				D0991CB22CBA56C100C6BE5A /* MutexLock.swift in Sources */,
 				D0122B0B29EEFEB8008311CF /* UICollectionView+REExtensions.swift in Sources */,
 				D004CC49285A41F500C41360 /* Synchronizing.swift in Sources */,
 				D01DABC229B4FAA700ABD25E /* Throttler.swift in Sources */,
diff --git a/Sources/Foundation/Data+REExtensions.swift b/Sources/Foundation/Data+REExtensions.swift
index 0ebc8c0..8433f88 100644
--- a/Sources/Foundation/Data+REExtensions.swift
+++ b/Sources/Foundation/Data+REExtensions.swift
@@ -151,7 +151,7 @@ public extension ReerForEquatable where Base == Data {
             throw JSONError.invalidArray
         }
     }
-    
+    #if !os(Linux)
     /// ReerKit: Generate a random length of Data.
     static func random(ofLength length: Int) -> Data {
         var randomData = Data(count: length)
@@ -164,6 +164,7 @@ public extension ReerForEquatable where Base == Data {
             return Data((0..<length).map { _ in UInt8.random(in: UInt8.min ... UInt8.max) })
         }
     }
+    #endif
 }
 
 #if canImport(CommonCrypto)
diff --git a/Sources/Foundation/NSAttributedString+REExtensions.swift b/Sources/Foundation/NSAttributedString+REExtensions.swift
index fa71888..7199f12 100644
--- a/Sources/Foundation/NSAttributedString+REExtensions.swift
+++ b/Sources/Foundation/NSAttributedString+REExtensions.swift
@@ -39,12 +39,12 @@ public extension Reer where Base: NSAttributedString {
         return base.attributes(at: 0, effectiveRange: nil)
     }
     
+    #if !os(Linux)
     @available(*, deprecated, renamed: "numberOfLines(forWidth:ignoreBlankLines:)", message: "Use numberOfLines(forWidth:ignoringBlankLines:) instead.")
     func lines(forWidth width: CGFloat, ignoreBlankLines: Bool = false) -> Int {
         return numberOfLines(forWidth: width, ignoreBlankLines: ignoreBlankLines)
     }
     
-    #if !os(Linux)
     /// ReerKit: Calculate lines for a `NSAttributedString` with a width constrained.
     /// - Parameters:
     ///   - width: A constrained of container view width.
@@ -77,7 +77,6 @@ public extension Reer where Base: NSAttributedString {
         
         return numberOfLines
     }
-    #endif
     
     /// ReerKit: Calculate height for a `NSAttributedString` with a constrained width.
     /// - Parameter width: A constrained of container view width.
@@ -87,13 +86,14 @@ public extension Reer where Base: NSAttributedString {
         let rect = base.boundingRect(with: maxSize, options: [.usesLineFragmentOrigin, .usesFontLeading], context: nil)
         return rect.height
     }
+    #endif
 
     /// ReerKit: Applies given attributes to the new instance of NSAttributedString initialized with self object.
     ///
     /// - Parameter attributes: Dictionary of attributes.
     /// - Returns: NSAttributedString with applied attributes.
     func with(attributes: [NSAttributedString.Key: Any]) -> NSMutableAttributedString {
-        guard !base.string.isEmpty else { return NSMutableAttributedString() }
+        guard !base.string.isEmpty else { return NSMutableAttributedString(string: "") }
 
         let copy = NSMutableAttributedString(attributedString: base)
         copy.addAttributes(attributes, range: NSRange(0..<base.length))
@@ -112,7 +112,7 @@ public extension Reer where Base: NSAttributedString {
         toRangesMatching pattern: String,
         options: NSRegularExpression.Options = []
     ) -> NSMutableAttributedString {
-        guard let pattern = try? NSRegularExpression(pattern: pattern, options: options) else { return NSMutableAttributedString() }
+        guard let pattern = try? NSRegularExpression(pattern: pattern, options: options) else { return NSMutableAttributedString(string: "") }
 
         let matches = pattern.matches(in: base.string, options: [], range: NSRange(0..<base.length))
         let result = NSMutableAttributedString(attributedString: base)
diff --git a/Sources/Foundation/NSPredicate+REExtensions.swift b/Sources/Foundation/NSPredicate+REExtensions.swift
index f932a85..46d889d 100644
--- a/Sources/Foundation/NSPredicate+REExtensions.swift
+++ b/Sources/Foundation/NSPredicate+REExtensions.swift
@@ -20,7 +20,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 //  THE SOFTWARE.
 
-#if canImport(Foundation)
+#if canImport(Foundation) && !os(Linux)
 import Foundation
 
 public extension Reer where Base: NSPredicate {
diff --git a/Sources/Foundation/NSRegularExpression+REExtensions.swift b/Sources/Foundation/NSRegularExpression+REExtensions.swift
index 3a573db..63567a1 100644
--- a/Sources/Foundation/NSRegularExpression+REExtensions.swift
+++ b/Sources/Foundation/NSRegularExpression+REExtensions.swift
@@ -38,30 +38,6 @@ public extension Reer where Base: NSRegularExpression {
     ///     The current state of the matching progress. See `NSRegularExpression.MatchingFlags` for the possible values.
     ///   - stop:
     ///     A reference to a Boolean value. The Block can set the value to true to stop further processing of the array. The stop argument is an out-only argument. You should only ever set this Boolean to true within the Block.
-#if os(Linux)
-    func enumerateMatches(
-        in string: String,
-        options: NSRegularExpression.MatchingOptions = [],
-        range: Range<String.Index>,
-        using block: @escaping (
-            _ result: NSTextCheckingResult?,
-            _ flags: MatchingFlags,
-            _ stop: inout Bool
-        ) -> Void
-    ) {
-        base.enumerateMatches(
-            in: string,
-            options: options,
-            range: NSRange(range, in: string)
-        ) { result, flags, stop in
-            var shouldStop = false
-            block(result, flags, &shouldStop)
-            if shouldStop {
-                stop.pointee = true
-            }
-        }
-    }
-#else
     func enumerateMatches(
         in string: String,
         options: NSRegularExpression.MatchingOptions = [],
@@ -80,7 +56,6 @@ public extension Reer where Base: NSRegularExpression {
             }
         }
     }
-#endif
 
     /// ReerKit: Returns an array containing all the matches of the regular expression in the string.
     ///
diff --git a/Sources/StandardLibrary/AnyObjectExtensions/AnyObjectExtensionable.swift b/Sources/StandardLibrary/AnyObjectExtensions/AnyObjectExtensionable.swift
index c5b190a..43e5d57 100644
--- a/Sources/StandardLibrary/AnyObjectExtensions/AnyObjectExtensionable.swift
+++ b/Sources/StandardLibrary/AnyObjectExtensions/AnyObjectExtensionable.swift
@@ -21,8 +21,11 @@
 
 /// ReerKit: Combinations of AnyObject extension protocols.
 /// You must conform this protocol by yourself if your class is NOT inheriting from `NSObject`.
+
+#if canImport(ObjectiveC)
 public typealias AnyObjectExtensionable =
     Associatable
     & OnceExecutable
     & Swizzlable
     & DeinitObservable
+#endif
diff --git a/Sources/Utility/Debouncer.swift b/Sources/Utility/Debouncer.swift
index 05a7eb9..e4bf1d0 100644
--- a/Sources/Utility/Debouncer.swift
+++ b/Sources/Utility/Debouncer.swift
@@ -25,7 +25,11 @@ import Foundation
 public final class Debouncer {
     private let queue: DispatchQueue
     public private(set) var workItem = DispatchWorkItem(block: {})
+    #if os(Linux)
+    private let lock = MutexLock()
+    #else
     private let lock = UnfairLock()
+    #endif
 
     public init(queue: DispatchQueue = .main) {
         self.queue = queue
diff --git a/Sources/Utility/GlobalFunctions.swift b/Sources/Utility/GlobalFunctions.swift
index 9d9cdaa..8b7ebf1 100644
--- a/Sources/Utility/GlobalFunctions.swift
+++ b/Sources/Utility/GlobalFunctions.swift
@@ -19,7 +19,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 //  THE SOFTWARE.
 
-#if canImport(Dispatch)
+#if canImport(Dispatch) && !os(Linux)
 import Dispatch
 
 /// ReerKit: Get current queue label.
diff --git a/Sources/Utility/Lock/UnfairLock.swift b/Sources/Utility/Lock/UnfairLock.swift
index 8d96c11..b840edd 100644
--- a/Sources/Utility/Lock/UnfairLock.swift
+++ b/Sources/Utility/Lock/UnfairLock.swift
@@ -19,7 +19,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 //  THE SOFTWARE.
 
-#if canImport(os)
+#if canImport(os) && !os(Linux)
 import os.lock
 
 /// ReerKit: A wrapper of `os_unfair_lock`
diff --git a/Sources/Utility/Throttler.swift b/Sources/Utility/Throttler.swift
index 8981271..0a4bc3f 100644
--- a/Sources/Utility/Throttler.swift
+++ b/Sources/Utility/Throttler.swift
@@ -32,7 +32,11 @@ public final class Throttler {
     private var isPending = false
     private var hasExecuted = false
     private var latestAction: () -> Void = {}
+    #if os(Linux)
+    private let lock = MutexLock()
+    #else
     private let lock = UnfairLock()
+    #endif
 
     private let queue: DispatchQueue
     private let performMode: PerformMode
diff --git a/Sources/Utility/Weak/WeakProxy.swift b/Sources/Utility/Weak/WeakProxy.swift
index f73365b..f323e38 100644
--- a/Sources/Utility/Weak/WeakProxy.swift
+++ b/Sources/Utility/Weak/WeakProxy.swift
@@ -19,7 +19,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 //  THE SOFTWARE.
 
-#if canImport(Foundation)
+#if canImport(Foundation) && !os(Linux)
 import Foundation
 
 /// A proxy used to hold a weak object.