npm install fails on the v4 branch

[lahwaacz]

Following the customization steps on the v4 branch, I get a long error message from npm install due to the node-sass module which was replaced by sass in the v5 branch. Should it be backported to the v4 branch?

npm WARN deprecated @stylelint/postcss-markdown@0.36.2: Use the original unforked package instead: postcss-markdown
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated popper.js@1.16.1: You can find the new Popper v2 at @popperjs/core, this package is dedicated to the legacy v1
npm ERR! code 1
npm ERR! path /home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-sass
npm ERR! command failed
npm ERR! command sh -c -- node scripts/build.js
npm ERR! Building: /usr/bin/node /home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! make: Entering directory '/home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-sass/build'
[snip]
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/create_string.o] Error 1
npm ERR! make: *** Waiting for unfinished jobs....
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/custom_importer_bridge.o] Error 1
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/sass_types/boolean.o] Error 1
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/sass_context_wrapper.o] Error 1
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/custom_function_bridge.o] Error 1
npm ERR! make: *** [binding.target.mk:129: Release/obj.target/binding/src/binding.o] Error 1
npm ERR! gyp ERR! build error 
npm ERR! gyp ERR! stack Error: `make` failed with exit code: 2
npm ERR! gyp ERR! stack     at ChildProcess.onExit (/home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-gyp/lib/build.js:194:23)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:511:28)
npm ERR! gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:293:12)
npm ERR! gyp ERR! System Linux 6.3.1-arch2-1
npm ERR! gyp ERR! command "/usr/bin/node" "/home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd /home/lahwaacz/Bbox/pg/cuda/tnl_subprojects/bootswatch/node_modules/node-sass
npm ERR! gyp ERR! node -v v20.2.0
npm ERR! gyp ERR! node-gyp -v v8.4.1
npm ERR! gyp ERR! not ok 
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/lahwaacz/.npm/_logs/2023-05-19T19_30_04_711Z-debug-0.log