Is there anything in particular that inspires you to come up with new stories and/or magic systems?
Really, anything can be the seed. Reading about science and scientific discoveries tends to be the most helpful, but I can’t say specifically what leads me to create them. (Though I’d suggest looking at “Sanderson’s Laws” of magic for a longer explanation.)
If you are viewing this on github.io, you can see that this site is open source. Please do not try to improve this page. It is auto-generated by a python script. If you have suggestions for improvements, please start a discussion on the github repo or the Discord.