No longer have all of them as files and apply sed.
Instead define dependencies via nix expression.
Also allow to write the scripts within nix expression.
Some are still large and separate .sh files, but loaded within
expression.
Also only the main file is exposed as others are only dependencies.
Still all can now be installed as all are separate derivations.
The new writeShellApplication also executes shellcheck as another
benefit. And it makes script executable.
Add my very first own derivation (via overlay).
Use existing scripts for dmenu.
"Build" result for nix out of the scripts,
e.g. replace references to nix dependencies.
Create proper output so nix can move it to proper places.
Daniel Siepmann