I watched developers with 9-5 jobs try vibe coding side businesses
Here's why most quit within 90 days:
Mistake 1: They vibe coded features, not MVPs
- Built for 6 weeks before showing anyone
- Perfected UI instead of validating demand
- Used AI to add complexity, not speed
Mistake 2: They treated it like a hobby
- Coded when "inspired" instead of scheduled
- Skipped marketing because it felt uncomfortable
- Never talked to potential customers
Mistake 3: They compared their Chapter 1 to others' Chapter 20
- Saw Marc Lou's revenue screenshots
- Felt inadequate with their $0 MRR
- Quit before compound effects kicked in
Who succeeded did this:
- Protected 45 minutes every morning
- Used Claude, cursor, Windsurf to ship one tiny feature daily
- Posted progress publicly even at $0 revenue
- Talked to 5 potential users per week
Vibe coding, coding, stack aren't the blockers
Consistency is
Your 9-5 gives you the luxury of patience
Most founders don't have that