pebble emu-app-config will not work due to gcc in the flake being too old

[jplexer]

kde-open: /nix/store/ybjcla5bhj8g1y84998pn4a2drfxybkv-gcc-13.3.0-lib/lib/libstdc++.so.6: version `CXXABI_1.3.15' not found (required by /lib64/libQt6Core.so.6)```

[Sorixelle]

Hmmm... that might be some of the LD_LIBRARY_PATH magic leaking out into invocation of non-Nix binaries, which would be less than ideal. Should be a matter of just patching out pebble-tool to unset that envvar before trying to open a browser. We'll give that a spin and see if that lands anywhere.

[Sorixelle]

Sorry about the delay in getting to this one - I think that particular override was a remnant of the time where some devtools (compiler, notably) weren't handled by pebble.nix. It shoudn't be needed anymore, so I've removed it, and it's fixed the issues with opening a browser now. Let me know if you run into any other issues with the change!