What I use:

hardware

Silent PC I got in 2013, still working great
LG DualUp vertical monitor ♥
Keychron Q3 keyboard with Kailh Midnight Pro silent switches ♥
Onyx Boox Go 6 ebook reader
Studiobricks One Plus sound-proof recording booth
AT5040 microphone
Macbook Air M2 for recording and travel
Focal Bathys headphones
Panasonic GH-5 camera now only for video interviews
Kensington Expert Mouse since 1995
Pixel 10 phone running GrapheneOS
Industrial Athletic squat rack, barbell, plates, and bench, right next to my PC so a few times per day I stop and do 5 reps, AKA “5×5”
Rowing machine, 20 minutes a day as per Dark Horse
Surly Preamble bicycle, modded electric
Nissan Leaf car

OpenBSD on my server
Void Linux on my desktop
Ratpoison wm ♥
st terminal
mksh shell
Vim, for all text
PostgreSQL, for all data
Go and Ruby programming languages
Nginx web server
OpenSMTPD email server
Radicale to privately self-host my contacts and calendar, synced to my phone
Firefox browser with uBlock Origin and Link Hints
Everything but Firefox in the terminal, so command-line tools like mutt for email, ffmpeg and mpv for audio/video, mupdf for ebooks, and ssh everywhere.
Skritter and Wenlin for learning Chinese.