diff --git a/.gitignore b/.gitignore
index 639ee51d1f..063cf310c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,195 +1,9 @@
-# Autotools generated files
-locale/Makefile.in
-Makefile
-aclocal.m4
-autom4te.cache
-config.status
-bin-stamp
-.deps
-.dirstamp
-lib-stamp
-libtool
-stamp-h*
-stamp-po
-*.stamp
-
-# Handcrafted makefiles
-!lib-src/expat/amiga/Makefile
-!lib-src/libnyquist/nyquist/sys/unix/*/Makefile
-!lib-src/lv2/Makefile
-!lib-src/mod-script-pipe/Makefile
-
-# Generated files by build system
-lib-src/expat/expat_config.h
-lib-src/libflac/doc/Doxyfile
-lib-src/libflac/config.h
-lib-src/libflac/test/common.sh
-lib-src/libid3tag/config.h
-lib-src/libid3tag/libid3tag.list
-lib-src/libmad/config.h
-lib-src/libmad/libmad.list
-lib-src/libmad/mad.h
-lib-src/libogg/config.h
-lib-src/libogg/include/ogg/config_types.h
-lib-src/libogg/libogg.spec
-lib-src/libsndfile/build-test-tarball.mk
-lib-src/libsndfile/doc/libsndfile.css
-lib-src/libsndfile/libsndfile.spec
-lib-src/libsndfile/man/sndfile-deinterleave.1
-lib-src/libsndfile/man/sndfile-metadata-set.1
-lib-src/libsndfile/src/config.h
-lib-src/libsndfile/src/sndfile.h
-lib-src/libsndfile/src/version-metadata.rc
-lib-src/libsndfile/tests/pedantic-header-test.sh
-lib-src/libsndfile/tests/test_wrapper.sh
-lib-src/libsoxr/soxr-config.h
-lib-src/libsoxr/src/libsoxr-dev.src
-lib-src/libsoxr/src/libsoxr.src
-lib-src/libsoxr/tests/ref-*.s32
-lib-src/libvorbis/config.h
-lib-src/libvorbis/doc/Doxyfile
-lib-src/libvorbis/libvorbis.spec
-lib-src/sbsms/libsbsms.spec
-lib-src/sbsms/src/config.h
-lib-src/soundtouch/include/soundtouch_config.h
-lib-src/twolame/doc/html/Doxyfile
-lib-src/twolame/libtwolame/config.h
-locale/POTFILES
-src/audacity.desktop
-src/RevisionIdent.h
-src/configunix.h
-src/configwin.h
-*.pc
-
-# CMake build output
-lib-src/libsoxr/CMakeCache.txt
-lib-src/libsoxr/*.cmake
-CMakeFiles/
-CTestTestfile.cmake
-cmake_install.cmake
-build/*
-cmake-build-*/
-
-# Waf build output
-lib-src/lv2/.buildvars
-lib-src/lv2/include/
-lib-src/lv2/*/build/
-lib-src/lv2/srcdir.mk
-.lock-waf_linux2_build
-
-# Mac build outputs
-mac/Audacity.xcodeproj/project.xcworkspace/contents.xcworkspacedata
-mac/Audacity.xcodeproj/project.xcworkspace/xcshareddata/Audacity.xccheckout
-mac/Makefile
-mac/confdefs.h
-mac/config.status
-mac/conftest.c
-mac/help/
-mac/images/
-mac/lib-src/
-mac/libtool
-mac/po/
-mac/src/
-mac/tests/
+# CMake build directory
+build/
 
 # Doxygen output
 dox/
 
-# Compiled Object files
-*.slo
-*.lo
-*.o
-*.obj
-*.pyc
-
-# Other unwanted files.
-*.suo
-*.sdf
-*.exp
-*.ilk
-*.pdb
-*.idb
-*.lastbuild
-*.log
-*.tlog
-*.ipch
-*.opensdf
-*.vcxproj.user
-*.sbr
-*.bsc
-*.aps
-
-# Precompiled Headers
-*.gch
-*.pch
-*.ncb
-
-# Compiled Dynamic libraries
-*.so
-*.dylib
-*.dll
-
-# Compiled translation files (GNU Machine Object)
-*.gmo
-
-# Compiled Static libraries
-*.lai
-*.la
-*.a
-*.lib
-
-# Executables
-*.exe
-*.app
-
-# Executable without extension
-/audacity
-src/audacity
-lib-src/expat/examples/elements
-lib-src/expat/examples/outline
-lib-src/expat/xmlwf/xmlwf
-lib-src/libflac/examples/c/decode/file/example_c_decode_file
-lib-src/libflac/examples/c/encode/file/example_c_encode_file
-lib-src/libflac/examples/cpp/decode/file/example_cpp_decode_file
-lib-src/libflac/examples/cpp/encode/file/example_cpp_encode_file
-lib-src/libflac/src/flac/flac
-lib-src/libflac/src/metaflac/metaflac
-lib-src/libflac/src/test_grabbag/cuesheet/test_cuesheet
-lib-src/libflac/src/test_grabbag/picture/test_picture
-lib-src/libflac/src/test_libFLAC++/test_libFLAC++
-lib-src/libflac/src/test_libFLAC/test_libFLAC
-lib-src/libflac/src/test_seeking/test_seeking
-lib-src/libflac/src/test_streams/test_streams
-lib-src/libogg/src/test_bitwise
-lib-src/libogg/src/test_framing
-lib-src/libsndfile/src/G72x/g72x_test
-lib-src/libsndfile/src/test_main
-lib-src/libsoxr/examples/1a-lsr
-lib-src/libsoxr/examples/3-options-input-fn
-lib-src/libsoxr/tests/vector-cmp
-lib-src/libsoxr/tests/vector-gen
-lib-src/libvorbis/lib/test_sharedbook
-lib-src/portaudio-v19/bin/
-lib-src/soundtouch/source/SoundStretch/soundstretch
-lib-src/twolame/frontend/twolame
-lib-src/twolame/simplefrontend/stwolame
-
-# Mac Specific
-.DS_Store
-xcuserdata
-*.xcconfig
-mac/build
-
-# Windows specific
-win/Debug
-win/Release
-win/Projects/*/Debug
-win/Projects/*/Release
-win/.vs/
-win/packages
-win/.nuget
-win-alt-build
-
 # All those help files
 help/manual*
 help/temp*
@@ -198,21 +12,4 @@ help/temp*
 src/RevisionIdent.h
 win/resetPrefs.txt
 
-# Emacs backup files
-*~
-win/xaudacity.ico
-*.sublime-project
-*.sublime-workspace
-/tests/results/*.png
-
-# IDEA IDEs
-.idea/
-
-#other files that get in the way
-*/not-for-git/*
-*.dll
-
-# VSCode
-.vscode/
-
 vcpkg_installed