Reshaping repo
The repo is designed for use with an existing builds.sr.ht service.
Besides lacking that, I am more interested in a containerized workflow
powered by a Makefile. Package source code will live in `pkgsrc/`,
packages will be built into `pkg/`, and packaging keys will be
generated into `keys/`.
Alos trimmed the packages down to what I will build.
*.sr.ht: Enable prometheus multiprocessing mode
git.sr.ht: overhaul init files
Fix git.sr.ht user creation
git.sr.ht: normalize init scripts
Make local redis service optional
Add extra gunicorn args to *.init
Fix more indentation issues
Correct comment in git.sr.ht.init