Starter kit founders, how did you get your first users?

Happy 2025! I'm working on a SaaS Starter Kit (yeah, yet another one!) because I found the one missing for .NET developers. I am close to finishing and launching it on ProductHunt so that it can be helpful to Saas Startups that prefer to use the .NET Stack. Now I'm curious to know how to find the first users. You must be wondering why I built the product without finding the user first. Well, I frequently help founders build their SaaS MVP and use the same starter kit for 2-3 projects now. But when it comes to marketing, everything is tricky, isn't it? P.S. If you are curious, check Brick Starter Kit in my profile, that's exactly what I'm talking about :)