Most of the tech listed here is free, open source, and/or can be self-hosted. Free, as I try to use or make sure software recommendations that are accessible to all, open source as I believe software should be auditable to ensure there are no backdoors or security flaws, and self-hosted also for privacy & security reasons. I definitely don’t recommend using American or Australian tech services, and try to avoid proprietary software where possible.

The software listed below is not necessarily software I endorse, just software I find interesting, or may want to have to reference for myself at a later date.