What do you think? Has there been a time where you have had to stop yourself from building out a passion project?
[0] https://tooldobox.com/
1. What you love -> How strong is the itch to create this side-project?
2. What you are good at -> Do you have the skills and resources for this project? Or least the aptitude to gain the skills?
3. What you can get paid for -> Most side-project don't directly benefit one financially. Maybe the question is will this project benefit me via skills acquisition or maintenance that could be helpful with my "real work"?
4. What the world needs -> Side-projects usually are not "needed:, but can be found interesting or entertaining. Definitely would weight "needed" > "interesting" or "entertaining".
If your goal is to learn certain skills, it sounds like maybe you’ve already done that.
If it’s to build a product that works for you, maybe you’ve done that too.
If it’s to make $500/month, then maybe keep going.
Or if it’s to grow the business into a full time job, keep going as well.
A goal will give you direction and motivation and a clear stopping point.