https://www.liberatingstructures.com/1-1-2-4-all/

https://app.thebrain.com/brain/3d80058c-14d8-5361-0b61-a061f89baf87/21b90ebd-dd91-4e3d-b58f-b1a77194f9b2

https://betula.mycorrhiza.wiki/

Betula is a free federated self-hosted single-user bookmarking software for the independent web. Use it to organize references or maintain a linklog.

https://anagora.org/mycoverse

https://obsidian.md/blog/json-canvas/

https://philosophy.williams.edu/files/Egan-Learning-to-Be-Me.pdf

Learning to be Me by Greg Egan

Phoenix Slides https://blyt.net/phxslides/

via Peter Kaminski:

A fast, free image viewer I use for sifting through thousands of images:

Setapp https://setapp.com/

One subscription which gives access to multiple applications (for iOS/Mac)

Mentioned by PK who uses it.

Hookmark https://hookproductivity.com/