Progress on podman process

The podman process is now very mature, and some things can actually be
copied over to the original docker process.

Sourcehut now is fully functional, with possibly exception for the mail
service. Needs to be tested. Furthermore, the cron jobs should be
configured to run.

x86/aarch64 simultaneous support is also complete. See the sister repo,
huttese-apk.

Fixes to configuration

metasrht now runs and is accessible. The /register path is broken
though, and I'll need to play with NGINX proxying to fix it.
The container-internal web port (8080) is being appended to the URL. The
simplest solution is probably to switch the web port back to 80.
Need to setup SSL/TLS certificate as well, so that I only have to
migrate this once.

A minor issue: the web page reads "Welcome to localhost:5000!". It seems
the `origin` key in the config files needs to be the public address, not
the internal address.

Also, now ready for persistent git repos.

Refactoring

The site is no more functional now. But the databases are now in
separate containers, and there is a working recipe for managing the
database initialization/migration (via `make dbinit` and `make dbmigrate`).
This should speed up image builds and container starts, and make the
entire development cycle faster.

Sourcehut files have been moved to `sr/`.

Initial commit

Site not yet working. Cannot reach meta.intra.dominic-ricottone.com
(502 Bad Gateway). Cannot get CGI or PHP FastCGI test scripts to work
reliably (502 Bad Gateway or 403 Forbidden). But static HTML is working
great, so the NGINX server is at least minimally working.

postgres database is working, though no migrations have been tested.

redis database is unknown.

postfix service is working within the container. Whether the sourcehut
services are configured to use it properly or not is unknown.

Need to find a better way to redact sensitive information than manual
edits.