Building alone is not fun, but finding a co-founder is hard. Instead of searching among random people at conferences or trying to get out of your X/Farcaster bubble, describe your idea on RootFounders platform, together with a link to a landing page, source code or MVP.
Users can then apply to become a co-founder and your friends can endorse you to boost your legitimacy.
Another big problem is that it is hard to validate ideas. How can you be sure that others will find your software useful?
RootFounders wants to help here by leveraging crypto. Every user can tip an already posted idea and add comments. This way founder gets first market signals and the project gets visibility (not to mention some extra money).