And there was an extra win for the Anza team, who received an additional $500 prize from Dada Devs CEO, @marcelorraine . We also want to give a special shout-out to @NNakhero , who was recognised by other participants for her incredible support and encouragement of the Dadas throughout the hackathon. 🧡 From the first session to the final pitch, these women showed what happens when you give developers the space to learn, experiment, collaborate and build. Hack4Freedom Nairobi may be over, but the building continues. ⚡️ Congratulations to all our Dadas! You did that. 🧡 #Hack4Freedom #DadaDevs #AfricanDevelopers

And there was an extra win for the Anza team, who received an additional $500 prize from Dada Devs CEO, @marcelorraine . We also want to give a special shout-out to @NNakhero , who was recognised by other participants for her incredible support and encouragement of the Dadas throughout the hackathon. 🧡 From the first session to the final pitch, these women showed what happens when you give developers the space to learn, experiment, collaborate and build. Hack4Freedom Nairobi may be over, but the building continues. ⚡️ Congratulations to all our Dadas! You did that. 🧡 #Hack4Freedom #DadaDevs #AfricanDevelopers

And just like that, The @hack4_freedom Hackathon Nairobi came to an end! 🇰🇪 After two weeks of learning, technical sessions, virtual bootcamp sessions, collaboration and building, the participants finally got to put everything into practice during the Hackathon. Demo Day was a celebration of the ideas they developed, the problems they explored, and the solutions they built together. And we’re especially proud to celebrate our Dadas who showed up, built, collaborated and made their mark. 🧡 🏆 1st Prize — Anza Dadas on the team: @aishagojo , @steppepulse 🥈 2nd Prize — Resilience by Team Nostr Warriors Dadas on the team: Adreen Nyawira, @mujojojayar , @GraciaMugoiri , @NNakhero , @DaisySawe 🏆 Nostr/Soapbox Prize — Nuru Women Dadas on the team: @JoylizzaMwangi

"this edge case would never happen in production"

Today marks the final session of Dada Devs Cohort 5, and we’re taking a moment to celebrate our Peer Leads. 🧡 Throughout the cohort, @KalukiTiiime, @Su_Githaiga , @NNakhero , @ELivingproof , @kavengi_lilian , @imm9cul9t3, and @mujojojayar took on the responsibility of supporting their respective learning groups through the technical journey. From working through assignments together and reviewing each other’s solutions to helping peers troubleshoot, think through technical problems, and stay accountable to their projects, they helped make learning a collaborative process. In a technical programme, learning doesn’t happen only during class. It happens when you open a GitHub repository, attempt the problem, get stuck, review someone else’s approach, receive feedback, and try again. Our Peer Leads helped create more of those moments within their groups. Thank you for contributing your time, technical knowledge, and leadership to Cohort 5. We’re proud to have had you lead from within the community. 🧡 Well done, Peer Leads! 🎉 #DadaDevs #BitcoinDevelopment #OpenSource #BuildOnBitcoin

🚢 Its LeetCode Saturday Mission — Longest Substring Without Repeating Characters We’ll explore different approaches, talk through sliding window pattern, and implement a solution All #Java #Kotlin heads are welcome Join on: discord.gg/RyevhrcTP #LeetCode #Algorithms

What if you could know how much your Bitcoin transaction reveals before you broadcast it? Every Bitcoin transaction leaves behind clues. The way coins are selected and spent can reveal patterns that affect a user’s financial privacy—often without them realizing it. That’s the problem @siriscore is solving. SiriScore is a pre-broadcast Bitcoin transaction privacy scorer that helps users understand what their transactions reveal before they sign. By analyzing transaction heuristics, it provides actionable privacy insights that support better coin selection and more informed Bitcoin spending. Built with a local-first approach, SiriScore is available as a web application, Python library, and CLI—keeping privacy at the center of the user experience. Behind the project are four members of the Dada Devs community: @Su_Githaiga, @mujojojayar, @Its_nkathake , and @NNakhero , who are contributing to open-source Bitcoin infrastructure that helps make privacy more accessible for everyone. Whether you’re a developer building Bitcoin wallets, a contributor interested in privacy tools, or simply curious about how Bitcoin transactions work, SiriScore is an open-source project worth exploring. 🌐 Try SiriScore: siriscore.xyz/ This is the kind of infrastructure that strengthens the Bitcoin ecosystem—not by changing the protocol, but by helping people use it more privately and intentionally. And that’s exactly the kind of technology we’re proud to see our community building. #Bitcoin #OpenSource #DadaDevs #BitcoinDada #WomenInBitcoin #BuildOnBitcoin #BitcoinDevelopers

Software has a way of reminding you why edge cases matter. 🧠 2 approaches to same LeetCode problem seemingly look correct Until one tiny input revealed a completely different result. What’s actually happening? Thoughts 👇💜 #SheShipsJVM #Java #LeetCode #SoftwareEngineering

📚 Readers' Friday Book Club Every chapter of Bitcoin's history has shaped the network we use today. Tonight, we're exploring Chapter 7: The Real Cost of Big Blocks from Hijacking Bitcoin by Roger Ver and Steve Patterson (@steveinpursuit). What really happened during Bitcoin's scaling debate? What lessons can today's builders and users learn from it? And how does it continue to influence Bitcoin's future? Join us as we read, question, and discuss one of Bitcoin's most controversial topics. 🕕 6:00 PM UTC 💬 Discord: discord.gg/mWt628TA4k Whether you've read the chapter or are simply curious, there's a seat for you. See you tonight! 📖⚡

📚 Readers' Friday Book Club! Join us today at 6:00 PM UTC on Discord as we dive into Chapter 5: The Blocksize Limit from Hijacking Bitcoin by Roger Ver and Steve Patterson (@steveinpursuit). Together, we'll explore one of Bitcoin's most significant scaling debates, examine the arguments presented in the chapter, and discuss how these events continue to shape Bitcoin today. Expect thoughtful discussion, diverse perspectives, and an engaging conversation with fellow Bitcoiners. Bring your copy, your questions, and your curiosity. See you at 6 PM UTC!📖 ​🔗 Discord Community: discord.gg/mWt628TA4k

We won a prize at @btcplusplus Nairobi🙌 We built Siriscore, a pre-broadcast privacy scorer that lets you see what a chain analyst sees before you sign a Bitcoin transaction. 1/3

We won a prize at @btcplusplus Nairobi🙌 We built Siriscore, a pre-broadcast privacy scorer that lets you see what a chain analyst sees before you sign a Bitcoin transaction. 1/3