I just saw zellij changed its config format from yaml to kdl https://kdl.dev/.

There currently are 3 implementations in rusts but 1 that is using serde: https://github.com/Lucretiel/kaydle
Apparently the same author also created https://github.com/lucretiel/serde-mobile which I’m not sure I understand what it does but may earn a link somewhere in the doc too. Like in the examples section?