If you have not heard of CapRover, it is a self-hosted platform-as-a-service designed to simplify deploying containers; that is well and good, and perhaps you will actually use CapRover at some point to deploy something to production. But the real value is using it as a playground.
CapRover offers a list of one-click-apps, and unlike choosing from a selection of one-click-apps from a cloud VPS host, you do not need to provision a new machine for each app you deploy. Deployment is super easy, and if there is not a one-click-app available, you can submit a Dockerfile to create your app.
CapRover also offers ridiculourly easy SSL deployment, so all of your self-hosted one-click-apps can have valid HTTPS certificates with minimal work on your end.
For context, here are some of my favorite one-click-apps available in the main CapRover Repository:
Ackee - a self-hosted, privacy-respecting analytics tool. (An alternative is Plausible, but I have not been able to get the self-hosted version working. If you are willing to pay, their SaaS option is actually pretty good... and I'm not getting paid to say that.)
code-server - VS Code in your browser. There are a couple quirks, but it is super helpful to have an accessible (from any computer with a web browser) IDE. Just try not to let yourself get lost in the weeds of maintaining any weird settings.
Firefly III - personal finance manager. To be honest, I have yet to spend much time figuring this one out, but it seems promising, and it also seems to be the most popular based on online forums.
OnlyOffice - Office suite in the browser. Fairly similar to Microsoft's products in functionality, but in your browser, and open source (not proprietary through Google).
Overall, there are still more one-click-apps for me to explore. There are also a couple that I have had trouble with... If you want Mastodon, do not host it with CapRover (as of July, 2021).
At the very least, CapRover will offer a little fun. Give it a shot.
Thanks, and you're welcome.