Christophe

WhatsApp's API costs you per message. Someone open sourced one that costs nothing. Someone open sourced a WhatsApp API gateway that runs entirely on your own server. No vendor lock-in. No per-message fee. No hidden paywalls. It's called OpenWA. The thing that makes it different is the pluggable architecture. You swap the database, the storage, and the cache through config alone. Never touch a line of application code. → SQLite for zero-config, or PostgreSQL for production → Local storage, or S3/MinIO when you need to scale → Memory cache, or Redis when speed matters Flip a setting. The whole backend changes underneath you. Here's what you actually get: → Full REST API for text, media, reactions, and bulk sends → Multi-session support so you run multiple WhatsApp accounts on one instance → Real-time webhooks with HMAC signatures → Groups, Channels, and Labels all covered → A full React dashboard for sessions, webhooks, and API keys → API key auth, rate limiting, CIDR whitelisting, and audit logging built in The wildest part is the setup. One Docker command and the whole thing is live on your machine. Dashboard, API, and Swagger docs all running. Most people are still paying a middleman per message to do exactly this. 90 stars. MIT License. 100% Opensource.

Here are 10 GitHub repos that quietly print money while you sleep. 1. Cal. com Open-source Calendly. Fork it, white-label it, sell to dentists and lawyers for $200/month. The founders hit $5M ARR in 3 years doing exactly this. Repo → github.com/calcom/cal.com 2. Plausible Analytics Privacy-first Google Analytics. Self-host it, resell to agencies for $50/month per client. Two founders bootstrapped this to 7 figures. Repo → github.com/plausible/anal… 3. Ghost Open-source Substack with 100% margin. 1,000 readers at $5/month equals $60,000 a year. Forever. Repo → github.com/TryGhost/Ghost 4. n8n Open-source Zapier. Sell automation services for $500-$2,000 per setup. n8n raised $14M because the agency model behind it works. Repo → github.com/n8n-io/n8n 5. Supabase Free Firebase replacement. Build a SaaS in a weekend, charge $29-$99/month. They raised $116M for a reason. Repo → github.com/supabase/supab… 6. Medusa Open-source Shopify. Take 5% on every sale forever. Zero rev share to Shopify. Repo → github.com/medusajs/medusa 7. AppFlowy Open-source Notion. Sell self-hosted to enterprises worried about data privacy. They raised $30M because this market is massive. Repo → github.com/AppFlowy-IO/Ap… 8. Coolify Open-source Vercel and Heroku. Charge developers $20/month to manage their deployments. Replace their $200 Vercel bill. Repo → github.com/coollabsio/coo… 9. Listmonk Open-source Mailchimp. Send unlimited emails for the cost of an AWS bill. Resell to agencies at 10x markup. Repo → github.com/knadh/listmonk 10. Penpot Open-source Figma. Sell self-hosted design tools to agencies who refuse to upload client files to the cloud. Repo → github.com/penpot/penpot The difference between developers who build features and developers who build businesses is one decision. Pick one of these. Fork it this weekend. Ship it next week. The founders behind these repos already proved the model. Save this. Share it with the developer in your life who deserves to break free. 100% free. 100% open source.

Japan has 4M+ vending machines, called jihanki. In Tokyo they’re everywhere, but the interesting ones are weirdly hard to find. So I made Jihanki Atlas, a map where people can discover, submit, and help verify Tokyo vending machines. Current favorites: Pokémon plushies, sriracha sauce, wagyu beef, edible insects, fresh-squeezed orange juice. What’s the coolest one you’ve seen? jihankiatlas.com

2026 c’est vraiment une simulation Le mec avance 350/500€ pour une Ap Swatch, paye 200€ un type pour faire la queue dès 4h du matin... Tout ça pour essayer de faire 80€ de marge net sur Vinted à un autre mec qui lui même dira "investissement incroyable frère" Le capitalisme est parti beaucoup trop loin mdrrrrr. La France de Macron, c’est dur hein

My brother figured this out ages ago. Whoop on an Omega.

SOMEONE JUST KILLED THE REAL ESTATE INDUSTRY A guy scanned an entire house with his phone. Uploaded it. Now anyone on Earth can walk through it in a browser tab. No app. No VR. No agent. No appointment. Click → you’re inside. Every room. Every angle. Every shadow. Photoreal. The numbers are insane: - Agent fee on a $500k home: $15,000 - Cost to make this scan: ~$200 - Time to “tour” 50 houses: one evening - File size: smaller than a TikTok The science is wild too: It’s called 3D Gaussian Splatting instead of polygons (how games render), it uses millions of tiny glowing “splats” of color and depth. AI reconstructs reality from your photos. The result loads on a phone and looks like you’re THERE. The grift opportunity is even wilder: Freelancers are already charging $300–$800 per scan for realtors, Airbnbs, venues, car dealers, museums. One person + one phone + one weekend = a business. Open source. Built on PlayCanvas. Free GitHub: github.com/playcanvas

@wilppg DM :-)

Say goodbye to Dropbox, iCloud, and OneDrive subscriptions. Someone open-sourced a sync tool that replaces all three for $0. And no company can shut it down. It's called Syncthing. Here's how it works: Every cloud storage company on earth routes your files through their own servers. That's not a technical requirement. That's a business model. Syncthing skips the server entirely. → Your devices connect directly to each other → Every transfer is TLS encrypted with perfect forward secrecy → Every device is authenticated by a cryptographic certificate → Nothing moves without your explicit permission → Works on Windows, macOS, Linux, Android, FreeBSD No account. No subscription. No company holding a copy of your files. Dropbox can raise prices. iCloud can change its terms. Google Drive can shut down tomorrow. Syncthing runs on your own machines. There's no server to breach. No company to pressure. No subscription to cancel. One install. Your devices. Your files. Your rules. 100% Opensource. syncthing.net

@zelie_chrd 1 place dispo, DM?

I hated how bad agents are at design I hated how Codex can't access Mobbin So I created Lazyweb - 257k+ screens (apps/web) - 6 opinionated design research skills - 1 MCP (Claude/Codex) 100% Free...AI native...no rate limits...no subscriptions.. Enjoy (and tell a friend) 🫡

An open-source alternative to Screen Studio.

Someone just open-sourced shadcn-style map components for React. It's called mapcn. Theme-aware, fully composable, and built on MapLibre GL so you get full mapping power without the Mapbox bill. 100% Open Source.

1 place pour Tame Impala @ Accor Arena (03/05/2026) dispo, catégorie 2 DM si intéressé #tameimpala #accorarena

REPO: github.com/docusealco/doc…

DocuSign Personal: $10 to $15 per month. DocuSign Standard: $25 to $45 per user per month. DocuSign Business Pro: $40 to $65 per user per month. A 10-person team on Business Pro pays $4,800 to $7,800 a year. To put signatures on PDFs. A team of 50 pays $24,000 to $39,000 a year. And there is a 100-envelopes-per-year cap on most plans. Send more contracts and you pay extra. Need SMS delivery? $0.40 per send. Need ID verification? $2.50 per attempt. Need premium support? $5,000 to $50,000 per year add-on. You are rationing digital signatures in 2026. DocuSign is a $10 billion company built entirely on this pricing model. Now meet DocuSeal. A free and open source alternative to DocuSign. Created in 2023 by a Ruby developer named Alex who was simply trying to sign one document and realised every solution online was overpriced or required a subscription. Three weeks later he had a working alternative. He pushed it to GitHub under the AGPL-3.0 license. Today it has 11,800+ stars and over 1,000 forks. Bootstrapped. No VCs. No paywalls. Here is what DocuSeal does: - Upload any PDF and turn it into a fillable, signable form - Drag and drop signature fields, dates, checkboxes, file uploads, and 13 field types - Send to multiple signers with custom signing order - Automated email reminders - Mobile signing on any device - PDF signature verification built in - Audit trail for every document - Bulk send and templates - Full API access - Self-host with one Docker command Here is what DocuSeal costs: Zero. Forever. Unlimited documents. Unlimited signers. Unlimited storage. DocuSign limits envelopes. DocuSeal doesn't. DocuSign charges per SMS. DocuSeal doesn't. DocuSign charges for ID checks. DocuSeal doesn't. DocuSign sees your contracts on their servers. DocuSeal doesn't. Here is the wildest part: The median DocuSign contract per Vendr is $17,250 per year. One Reddit thread has people saying "they want me to pay $4.80 per e-signature." Self-host DocuSeal on a $5 cloud server and a 50-person team can sign as many contracts as they want without paying a single dollar. Your contracts never leave your server. Your client lists. Your NDAs. Your employment agreements. None of it touches a third-party company. For individuals who only sign a few contracts a year, you save $180. For small teams of 10, you save up to $7,800 a year. For a 50-person company, you save up to $39,000 a year. Your documents. Your signatures. Your server. 100% Open Source. (Link in the comments)

You should steal this onboarding Brainrot doesn't sell features It sells fear of dying → Life in dots: lived vs left → Predicts days you'll lose scrolling → Says willpower can't beat dopamine → Shows your brain rotting with flies By the paywall, you'd pay anything

Agents make ugly UIs because they've never seen good design. We've been fixing that, 2,000 DESIGN.md files from the world's best products, structured for a model to read and learn. Colors, type, spacing, layouts and more. Free. styles.refero.design

17 year olds are about to start printing $100k months with 2 shifts that just happened in the ecom space. Meta and Higgsfield both dropped official MCP connectors for Claude. What that means in plain English and how to set it up today: You can now connect Claude directly to your Meta Ads account and to Higgsfield's full creative studio at the same time. The setup: CONNECT META ADS TO CLAUDE → Go to claude[.]ai Settings → Connectors → Add custom connector → Name it Meta Ads → Paste this URL: https://mcp[.]facebook[.]com/ads → Connect and sign in with your Meta Business account → Grant ads_read, ads_management, business_management, read_insights permissions Claude can now read your full campaign performance, ROAS, CTR, CPM, creative breakdowns, pixel health and more. It can also create and edit campaigns, ad sets and ads with your approval on every action. CONNECT HIGGSFIELD TO CLAUDE → Same place: Connectors → Add custom connector → Name it Higgsfield → Paste this URL: https://mcp[.]higgsfield[.]ai/mcp → Connect with your Higgsfield account Claude can now generate UGC videos, static ad creatives, product mockups, carousels and storyboards directly inside the chat. Images up to 4K, videos up to 15 seconds, and any format ready to upload. You need Claude Pro, Max or Team to run both connectors at the same time. THE WORKFLOW Open a Claude chat with both connectors being active. → Step 1: Ask Claude to pull your last 14 days of Meta data and identify your top-performing creatives and angles → Step 2: Tell Claude to brief Higgsfield using those winning angles and generate 10 fresh ad variations for your product → Step 3: Review the assets Claude generates directly in the chat → Step 4: Tell Claude to build new test campaigns using the new creatives and approve the launch You used to pay for creatives, wait for delivery, upload manually, and guess which angle would win. Now Claude tells you what's already winning in your account and builds the next round of creatives around that data before you finish your coffee. Comment "PROMPT" below, and I'll send you the exact prompt stack you can use to run this full loop. (follow so I can send to your dm)

🚨BREAKING : Call centers are officially dead. ElevenLabs Agents quietly wiped out the $40B customer support industry. → Sounds human in 70+ languages → Books, updates, closes tickets mid-call → Plugs into GPT, Claude, Gemini, any LLM → $0.08/min, startups get $4K free Revolut, Cisco, Deliveroo already switched. You're next 🧵