Revert "Fix Zig cache races in remote build scripts"
SWARM-112: bump Android targetSdkVersion 34 -> 35
artifacts: publish sleek-host Linux x86_64 build (sif-egl-fix)
sif: fix EGL/GL vendor discovery inside apptainer/singularity container
Cursor: Apply local changes for cloud agent
Cursor: Apply local changes for cloud agent
Cursor: Apply local changes for cloud agent
Cursor: Apply local changes for cloud agent
Simplify .boxci to merge-only; issue→patch is builtin to boxci.
Add Buildkite pipeline for check and optional nixbuild APK/Flatpak artifacts.
Shrink desktop Nix closure and keep Cachix hits stable.
