* Add flake.nix to the project
* docs: add build badge
* feat: add Github Actions build
* Correct escaped pipe character in urlscan.1
* license: use `GPL-2.0-or-later` (as `GPL-2.0` is deprecated spdx id)
* fix: patch invalid escape sequence in regex argument help text to support py3.12
* read me update - neomutt term color compatability
* Fix for newer urwid versions