#3166 is adding Rust-implemented completions. In reviewing nu's changelog, they added support for offering ./target/debug/incremental as a completion for tar/de/inc (see https://www.nushell.sh/blog/2023-10-17-nushell_0_86.html#improving-the-completions-in-the-repl-toc). It could be really nice for us to include that as well.