You can run each project on its own subdomain on a shared domain. Example: app1.mysite.com app2.mysite.com. This can save you tens of dollars a year and save you some headaches. Probably not optimal for SEO, but for random projects it's pretty good.
I've used asdf for years, but recently switched to https://github.com/jdx/mise
It's a drop-in replacement for asdf, but I prefer some of the nice features it has to offer.
> We were made aware that a single user of the AI platform was purportedly provided an image that did not adhere to the built-in parameters set by the developers.
I laughed at this. What a non-apology with no accountability.
lektor offers some of this functionality. editing is done locally through a browser UI, but there may be a way to host the interface. deployments are easy.
I've enjoyed using Dokku https://dokku.com/
It's very similar to heroku, but self-hosted. The pre-setup digitalocean option seems like a good way to try it out.
Arch Linux all the way, for any type of development. I love trying out different languages and frameworks , and pacman makes installation and updating a breeze.