diff --git a/.build/debug.yaml b/.build/debug.yaml
deleted file mode 100644
index a9699e6..0000000
--- a/.build/debug.yaml
+++ /dev/null
@@ -1,54 +0,0 @@
-client:
-  name: basic
-  file-system: device-agnostic
-tools: {}
-targets:
-  "CWinRT-debug.dylib": ["<CWinRT-debug.dylib>"]
-  "CWinRT-debug.module": ["<CWinRT-debug.module>"]
-  "PackageStructure": ["<PackageStructure>"]
-  "main": ["<CWinRT-debug.dylib>","<CWinRT-debug.module>"]
-  "test": ["<CWinRT-debug.dylib>","<CWinRT-debug.module>"]
-default: "main"
-nodes:
-  "C:\\dev\\browser\\swift-cwinrt\\Sources\\CWinRT/":
-    is-directory-structure: true
-    content-exclusion-patterns: [".git",".build"]
-commands:
-  "<CWinRT-debug.dylib>":
-    tool: phony
-    inputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.dll"]
-    outputs: ["<CWinRT-debug.dylib>"]
-
-  "<CWinRT-debug.module>":
-    tool: phony
-    inputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o"]
-    outputs: ["<CWinRT-debug.module>"]
-
-  "C.CWinRT-debug.dylib":
-    tool: shell
-    inputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList"]
-    outputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.dll"]
-    description: "Linking C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.dll"
-    args: ["C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Toolchains\\0.0.0+Asserts\\usr\\bin\\swiftc.exe","-L","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug","-o","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.dll","-module-name","CWinRT","-emit-library","@C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList","-runtime-compatibility-version","none","-target","x86_64-unknown-windows-msvc","-nostartfiles","-sdk","C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Platforms\\0.0.0\\Windows.platform\\Developer\\SDKs\\Windows.sdk","-libc","MD","-I","C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Platforms\\0.0.0\\Windows.platform\\Developer\\Library\\XCTest-development\\usr\\lib\\swift\\windows","-I","C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Platforms\\0.0.0\\Windows.platform\\Developer\\Library\\XCTest-development\\usr\\lib\\swift\\windows\\x86_64","-L","C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Platforms\\0.0.0\\Windows.platform\\Developer\\Library\\XCTest-development\\usr\\lib\\swift\\windows\\x86_64","-use-ld=lld","-g","-use-ld=lld","-Xlinker","-debug:dwarf","-Xlinker","-debug:dwarf"]
-
-  "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o":
-    tool: clang
-    inputs: ["C:\\dev\\browser\\swift-cwinrt\\Sources\\CWinRT\\shim.c"]
-    outputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o"]
-    description: "Compiling CWinRT shim.c"
-    args: ["C:\\Users\\skirb\\AppData\\Local\\Programs\\Swift\\Toolchains\\0.0.0+Asserts\\usr\\bin\\clang.exe","-target","x86_64-unknown-windows-msvc","-O0","-DSWIFT_PACKAGE=1","-DDEBUG=1","-fblocks","-I","C:\\dev\\browser\\swift-cwinrt\\Sources\\CWinRT\\include","-D_MT","-D_DLL","-Xclang","--dependent-lib=msvcrt","-gdwarf","-MD","-MT","dependencies","-MF","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.d","-c","C:\\dev\\browser\\swift-cwinrt\\Sources\\CWinRT\\shim.c","-o","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o"]
-    deps: "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.d"
-
-  "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList":
-    tool: write-auxiliary-file
-    inputs: ["<link-file-list>","C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o"]
-    outputs: ["C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList"]
-    description: "Write auxiliary file C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList"
-
-  "PackageStructure":
-    tool: package-structure-tool
-    inputs: ["C:\\dev\\browser\\swift-cwinrt\\Sources\\CWinRT/","C:\\dev\\browser\\swift-cwinrt\\Package.swift","C:\\dev\\browser\\swift-cwinrt\\Package.resolved"]
-    outputs: ["<PackageStructure>"]
-    description: "Planning build"
-    allow-missing-inputs: true
-
diff --git a/.build/workspace-state.json b/.build/workspace-state.json
deleted file mode 100644
index 71deae9..0000000
--- a/.build/workspace-state.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "object" : {
-    "artifacts" : [
-
-    ],
-    "dependencies" : [
-
-    ]
-  },
-  "version" : 6
-}
\ No newline at end of file
diff --git a/.build/x86_64-unknown-windows-msvc/build.db b/.build/x86_64-unknown-windows-msvc/build.db
deleted file mode 100644
index c09880b..0000000
Binary files a/.build/x86_64-unknown-windows-msvc/build.db and /dev/null differ
diff --git a/.build/x86_64-unknown-windows-msvc/debug/description.json b/.build/x86_64-unknown-windows-msvc/debug/description.json
deleted file mode 100644
index bc48968..0000000
--- a/.build/x86_64-unknown-windows-msvc/debug/description.json
+++ /dev/null
@@ -1,55 +0,0 @@
-{
-  "builtTestProducts" : [
-
-  ],
-  "copyCommands" : {
-
-  },
-  "explicitTargetDependencyImportCheckingMode" : {
-    "none" : {
-
-    }
-  },
-  "generatedSourceTargetSet" : [
-
-  ],
-  "pluginDescriptions" : [
-
-  ],
-  "swiftCommands" : {
-
-  },
-  "swiftFrontendCommands" : {
-
-  },
-  "swiftTargetScanArgs" : {
-
-  },
-  "targetDependencyMap" : {
-    "CWinRT" : [
-
-    ]
-  },
-  "testDiscoveryCommands" : {
-
-  },
-  "testEntryPointCommands" : {
-
-  },
-  "writeCommands" : {
-    "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList" : {
-      "alwaysOutOfDate" : false,
-      "inputs" : [
-        {
-          "kind" : "virtual",
-          "name" : "<link-file-list>"
-        },
-        {
-          "kind" : "file",
-          "name" : "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.build\\shim.c.o"
-        }
-      ],
-      "outputFilePath" : "C:\\dev\\browser\\swift-cwinrt\\.build\\x86_64-unknown-windows-msvc\\debug\\CWinRT.product\\Objects.LinkFileList"
-    }
-  }
-}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index eb59970..812a566 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,6 +51,7 @@ Module.symvers
 Mkfile.old
 dkms.conf
 
+.build
 .packages
 .generated
 swift-winrt.rsp