spc-pleroma/ci

## Dependencies

Assuming an AMD64 Alpine system, you're going to need the following packages
- `qemu qemu-openrc qemu-arm qemu-aarch64` for binfmt
- `docker-cli-buildx` for building the images

## Setting up

```
docker login git.pleroma.social:5050
doas rc-service qemu-binfmt start
```