I use deepseek flash to do exactly this. Git repo (which I usually have it build from scratch) -> build docker image -> deploy to server with komodo/caddy-docker proxy.

Works great, regularly one shot applications. I often make changes to the application after its deployed (to be fair, my prompts are usually quite laxidasical, just 'build x, use /deploy-to-komodo) but the deployment works great.

I did make a skill, but if your doing anything repeatedly you should as well.

Opencode, but any harness I'd think would work similar.