env setup for windows

.env.bat

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+@REM set MSYS_PATH=C:\msys64\usr\bin
+set MSYS_PATH=%USERPROFILE%\scoop\apps\msys2\current
+
+@REM gcc
+@REM set PATH=%MSYS_PATH%\mingw64\bin;%MSYS_PATH%\usr\bin;%PATH%
+
+@REM clang
+set PATH=%MSYS_PATH%\clang64\bin;%MSYS_PATH%\usr\bin;%PATH%

code.bat

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+call .env.bat
+
+code.cmd .