[moosingin3space]

This tool is lighter-weight than firejail. nsjail seems to be a thin abstraction over Linux namespaces, while firejail contains profiles for common desktop applications and some X hackery to enable jailing of GUI programs.

[jagger11]

author here:

Yup, nsjail doesn't have X hacks (I should work on that), though it offers some profiles for Apache-like type of applications:

https://github.com/google/nsjail/tree/master/configs

I believe nsjail uses one of the most advanced (if not the most advanced) seccomp-bpf config language - kafel: https://github.com/google/kafel

[audidude]

bwrap allows passing a FD containing the seccomp rules (--seccomp FD w/ seccomp_export_bpf). If it can export the compiled eBPF it should be trivial to use kafel profiles w/ bubblewrap/atomic/flatpak/etc.