Codex

A tool, but also a [person] named Iian (with two Is) on [twitter]: https://twitter.com/codexeditor.
A [friend].
Introduced me to [Luca Landucci], [Standoff properties], [TEI]
Into [Dune]: https://twitter.com/codexeditor/status/1287377076090048512
I like his "crazy codex ideas" series: https://flancia.org/t/codexeditor/crazy
Had a really nice talk about the Codex editor over VC one day, but apparently forgot to write about it in the diary.
They have a motto: https://twitter.com/flancian/status/1327664339957010432 (or perhaps [codexeditor] does.)