3,272 applicants. 50 selected contributors from 7 countries. 26 bitcoin orgs. One very exciting summer ahead. Summer of Bitcoin 2026 is officially underway. Meet the next generation of Bitcoin builders: blog.summerofbitcoin.org/sum…

summer of bitcoin alumni are on a generational run 🧡 Ansh & Leonardo secured long-term @btrustteam support. now @hey_yuvicc (SoB '24/'25) & @sliv3r__ (SoB '25) have @OpenSats grants! 4 alumni funded in 3 weeks. we're building the next generation of bitcoin open-source devs!

Our 2024 alumnus, @braidpool contributor & current @OpenSats/@HRF grantee @zaidmstrr dropping some serious alpha for this year’s cohort on going from a summer internship → long-term contributor → full-time Bitcoin open-source dev. Alumni pulling the next cohort forward!

@summerofbitcoin may have ended, but my journey in bitcoin oss is just beginning. excited to see where my work in @SeedSigner leads next

Ansh and Leonardo both entered bitcoin open source through @summerofbitcoin. They found their first projects, kept building, and now have long-term @btrustteam support to do it full-time. That’s our mission: open the door for the next generation of bitcoin open source devs🧡

A special shout out to our Ideathon partner @summerofbitcoin for helping spread the word to their community and bringing in some incredible Bitcoin ideas! Don't forget to grab your ticket to Bitmela so you can watch the finale pitch live!

A big thanks to this years @summerofbitcoin students Rishit and Domenec. Some great work was done and FOSS skills learned. domenec-madrid.github.io/blo… blog.summerofbitcoin.org/fro…

Some say self-custodial Lightning on mobile is impossible. One of our summer interns, Prabal (@alienx5499), spent the summer working on the @stablechannels iOS app—and begs to differ. He wrote up what he learned for the @summerofbitcoin blog. 👇 blog.summerofbitcoin.org/har…

Biresh was one of my @summerofbitcoin interns and worked on the server side of @stablechannels. Running a Lightning Service Provider requires careful accounting and cybersecurity work, and Biresh did a great job. I hope he keeps building in bitcoin! 🧡

My @summerofbitcoin journey with @stablechannels⚡ Built with @lightningdevkit server, I separated the LSP from LDK Server, migrated the live deployment, expanded the operator dashboard, improved the wallet-LSP protocol and prepared the Umbrel package. Dollar stability, backed by Bitcoin. Thanks @tonklaus for the mentorship! 🚀

Demo time! So the Summer of Bitcoin deadline is approaching, and I felt a demo was long due. Insane progress from the previous demo, let me know you thoughts! @SeedSigner @summerofbitcoin @KeithMukai Full uncut demo: piped.video/watch?v=V-q2-1_d… Demo 1/5

Been contributing to @arkade_os for the past months after being introduced to #Bitcoin by @summerofbitcoin this year. I've learned a lot and appreciate the work being built here. Thanks to @gringokiwi, @tierotiero and @MrKukks for the support. Logs: github.com/muchai254/BOSS-co…

Summer of Bitcoin is a global online education program that introduces university students to Bitcoin open-source development and design. Since 2021, the program has received more than 40,000 applications from 74 countries and onboarded over 280 developers. Its 2025 edition received 5,036 applications from 71 countries in just 15 days. From that pool, 68 interns from 9 countries worked with 32 bitcoin organizations, contributing to more than 86 repositories and submitting 413 pull requests. @summerofbitcoin remains one of the largest pipelines bringing young, globally distributed talent into Bitcoin FOSS.

6 weeks into @summerofbitcoin 2026, just wrote about what I've been building. Adding sender-side PayJoin to @covewallet, an open source Bitcoin wallet. privacy at the protocol level, nothing changes for the user. full blog 👇 medium.com/@sandipmandal02.s… #Bitcoin #CodingJourney

So freakin' cool: @akhil_dhyani's project to mod the @SeedSigner UI to work on super low budget / constrained screens! Our SAME command & control logic, but a completely different (and challenging!) mode of user presentation + interaction! Part of @summerofbitcoin '26!

Great work by @Harsh_dev098 getting escrow in Fedimint prototyped out!

curious students → open-source contributors → funded bitcoin builders. Huge congratulations, Nishant 🧡

3 weeks @summerofbitcoin, 3 challenges: chain lens, coin smith, sherlock built all three as separate tools then thought why not just make it one thing so i did. chainX - a bitcoin protocol toolkit chain-x.tech

The intended audience for this stream was @summerofbitcoin participants, but @KeithMukai provides a *great* overview of the @SeedSigner project in the first 10-15 minutes of this video. 🧡 piped.video/watch?v=uaZrru5x…

🧑‍💻 Open-source infrastructure needs new builders. @summerofbitcoin trains contributors through mentorship, education & real #bitcoin project work. With HRF’s support, the freedom-tech builder pipeline gets stronger.