Papermark

Mark posted a tweet announcing he would build an open-source Docsend alternative. It got ~40,000 views within hours, validating demand before a single line of code was written.

After building the MVP over the weekend, Mark posted a launch tweet on Monday sharing the open-source project. The tweet reached ~100,000 views and drove the first wave of users and early paying customers who reached out asking to pay.

Published the full source code on GitHub under an open-core license. This created zero barrier to entry — developers could star, fork, self-host, and contribute. The public repo acted as a perpetual inbound marketing asset and trust signal.

Consistently shared incremental progress — even incomplete features — on Twitter and LinkedIn. The philosophy was 'nothing to hide behind,' so every small ship became a public update that compounded community growth and customer awareness.

Participated in Hacktoberfest, a month-long open-source hackathon. This brought in new contributors, accelerated feature shipping velocity, and raised project visibility in the developer community.

Offered free self-hosting for the core product while monetizing through a paid hosted version (papermark.com) for non-technical users, plus an enterprise license for advanced features on self-hosted infrastructure. This funnel converted self-hosters who didn't want maintenance overhead into paying customers.

Leveraged 60+ open-source contributors to ship features faster than incumbents (Docsend, legacy data room providers). As feature parity was reached and then surpassed, users began switching from incumbents. The faster shipping cycle itself became a growth driver — customers noticed Papermark was building while competitors stagnated.