While reading the This Week in Self-Hosted (14 February 2025) newsletter by @shollyethan, I found out about this interesting website for Proxmox users. It generates bash scripts that automate the install of various kinds of apps, either in LXC containers, or VMs. I tried a couple of them, and they are very easy to use and practical.
I'm gonna keep writing my own Ansible playbooks (I kind of have a template now), but this is very interesting to use, in case I just want to try something out before committing.