Obsidian Plug-in. TypeScript.

Auto-Properties Plugin

Auto-properties is a Plug-in for Obsidian that allows you to create automatically-updating properties based on the contents of your notes + rules you define.

I use it for my Obsidian-based Project Management System.

More

https://github.com/aarongilly/obsidian-auto-properties

It will be on Obsidian’s community plugins page when they get through their quite extensive backlog of plugin submissions.