I started selling my own design templates and tutorials a few years back and ended up making a steady $2–3k/month from a single Medium post that ranked well on Google and some Product Hunt traction.

This led me to build https://tapflow.co on the side (been 3 years). It's a simple platform where tech pros-designers, devs, marketers, PMs— turn internal docs, templates and workflows into paid products. I kept it lean since most don't have time to build a full course.

The core idea: many pros have valuable knowledge sitting unused-too busy, unsure of their expertise, or find it too complicated to create full courses. I built a tool to help them quickly pack and sell what they know, creating passive income.

Some friends and early adopters have made over $20k from their products (mainly courses). One French teacher even earned over $7k on the first day with just a promo page https://tapflow.co/p/du-b2-au-c1-4ebMhTxqJi

Since launch, I haven’t done any real marketing—just personal recommendations, Product Hunt and Reddit. Now it’s stable income. The platform takes a small cut and offers a pro tier.