I have the same brand and they work well enough, but constantly fall out no matter what size tip I use. I recently found out they can survive being dropped in a bucket of water after falling out while washing my car though, so at least they are durable.
refreeze
If you have done a partial gene sequence for a service like ancestry or 23andme you can just look at the raw data and search for the known polymorphisms.
Methylated B vitamins and vitamin D were life changing discoveries. I have some polymorphisms (VDR and MTHFR) that mean I am less efficient at absorbing them from food. 2000 IU a day and a B-complex ended chronic depression/anxiety and insomnia for me. Those mutations are pretty common so I highly recommend trying them for anyone with similar issues.
Aside from that I think a whole foods plant based diet with some eggs and fish and no refined sugars is probably the way to go. Some micronutrients like vitamin A and K2 are more easily absorbed from animal sources, so eating a small amount of meat and/or eggs is probably a bit healthier than pure plant based IMO.
I quite like Fastmail. It's a bit expensive but the service is very reliable and they have a well established reputation. You can create masked emails using their domain or your own from the web interface.
As of the latest release (21), you can simply install microG on regular LOS and no longer need to install LineageOS for microG since it now includes the necessary signature spoofing support.
If you don't need the GPIO then buy a small form factor office PC like a Dell Optiplex Micro or a Lenovo/HP equivalent. They cost about the same on the used market, are more performant without the ARM headache and use only marginally more power (maybe 5-10w more at idle).
Ubuntu -> Arch -> Debian (stable) -> Fedora Silverblue -> NixOS
I'm curious, why do you use LVM with BTRFS and not just use BTRFS built in subvolumes?
btrfs snapshots are still useful on immutable distros to recover accidentally deleted data.
You will hate Ansible if you are coming from Nix. I went the other way and Nix is 1000x cleaner.
Being able to actually reverse changes is trivial in Nix, but can be a headache in Ansible. Not to mention the advantages of writing in an actual language and not yaml full of template hacks. I personally don't see much future for tools like Ansible, there is considerable inertia working in its favor right now and it is absolutely true that it is widely used, but the future of configuration management is for sure more aligned with how Nix works.
I'm pretty happy with the combo of a cheap, thin mattress with a nicer memory foam topper on it. Affordable, and can replace the topper separately if needed producing less waste than needing a whole new mattress.