This is something I've been toying with for the better part of a year after I decided that I wasn't a fan of the mandatory host integration used by Toolbx and Distrobox. It started as a PR idea for Distrobox that I binned; the idea then mutated into a janky (but functional) Fish script that I ultimately ported to Rust to escape from glacially slow string-typed hell.
I've been using this for all my development environments and some local services for a few months now, and I think others (esp. atomic distribution fans) may find it useful!