0.2.1

Enable flakes in CI's Nix

Update manpage

Run tests in CI via Dash

Use flake in CI

Use Nix flake shell

Also replaces sed with awk.

Replace remaining usage of sed with awk

Remove unneeded parameter expansion

Replace one simple usage of sed with awk

Lints

Simplify banglist lookup

Fix URL encoding; add GNU awk dependency

Looks portable enough: https://unix.stackexchange.com/questions/123144/which-is-the-most-portable-of-sed-awk-perl-and-sh

Probably more consistent across systems than coreutils' od.

Add dash to Nix shell config for POSIX-compliance testing

Remove unneeded recursive set annotation

Note dependency upon GNU sed

Fix shebang spacing

Deploy w/ NixOS

Add Nix shell config

Check for CI diff with git instead

This one should finally work... hopefully.

Patch CI diff with ed instead