I'm currently wearing a continuous glucose monitor. Does that count? I'm all for anything voluntary especially if it improves quality of life without impeding on others.
The last two are local-network only and the most recent additions; still just tinkering with them at this point.
My favorite of the list is probably TT-RSS which I use for podcasts and to keep tabs on a few sub-reddits I had participated in before moving to Lemmy.
Very cool design; how well do they stay put on the desk? My last split keyboard would nudge slowly during use and had to be moved back which I found annoying.
If you're comfortable working on a local VM then perhaps a VPS such as Linode or Digital Ocean would be a good place to start; they're essentially VMs hosted in cloud you have total control of so you can install whatever you want just like a local VM. Even the cheapest VPS option is plenty for this sort of testing.
+1 for Minetest both client and server too; we run one locally for the kiddos :)