One things I want in my idea tracker is the abilities to a) Add context over time b) Grade my ideas, probably simply from 1 to 10 based on how much depth I think they have. Most of my ideas start out unverified and without context and when I share my idea or do more research about it or even think more about it, I always find some nuances, additional context, modifications or the best is that even better ideas come out.
So I am building what I call "Idea percolator" : https://github.com/abhihub/IdeasPercolator_react_frontend
What you need is an electronic notebook synced of whatever form: Apple notes, Emacs with Git, whatever floats your boat. It has to electronic and it has to be sync to all the platforms you work on.
Then you either create a new file or just add an entry whenever you want to add something to your idea inbox, or whatever else and it can grow from there as necesasry.
I've just been adding them into a google doc for years...
I made an app that's ideal for this: https://thinktype.app