Wasmer ported their 7-year-old Django backend to Rust. The results are hard to ignore. 🦀
Before vs After:
→ 220 CPUs → 24 CPUs (-89%)
→ 800 GB RAM → 64 GB RAM (-92%)
→ p95 API latency: 120ms → 30ms (-75%)
→ Startup time: 60s → 1s
→ DB connections: thousands → hundreds
One engineer. Three months. AI-assisted migration.
They're honest about the tradeoffs : longer build times, no `https://t.co/vZAHmIndB1 shell` for quick prod fixes, and SQLite/Postgres dual support was painful.
And they're clear: this wasn't "Django is bad." Django served them well for 7 years. The rewrite made sense because their entire stack was already Rust-heavy.
Full writeup worth reading 👇
🔗 https://t.co/vvg0tl6Hpe
#Rust #RustLang #Django #Python #WebDevelopment #OpenSource #BackendEngineering
We've changed the trigger word from "workflow" to "ultracode".
You can still say "use a workflow for this", but when you're clearly referring to something else, Claude won't kick off a dynamic workflow. For an explicit trigger, use "ultracode". We appreciate the feedback!
I am so thoroughly convinced that anyone who thinks AI 100x's their output is a liar or a lunatic.
You are telling me you can make 1 years worth of decisions in 3.65 days? Let alone describing those accurately and coaxing the result from the AI... (1.8 days european time)?
Introducing Devin Desktop: the next generation of Windsurf
Manage fleets of local and cloud agents from one surface
Support for any ACP-compatible agent
With a full IDE for when you need to jump into the code
We're finally shedding the .so (thank you Somalia!), and using the .com for @NotionHQ. And for this beautiful moment, I want to share a fun story:
Back in 2018, I had just joined Notion, and one of the first things @ivan asked me to do was figure out how we could own https://t.co/BxoFvc83VG. I had never done a big domain purchase before, so I reached out to a few domain brokers to understand the landscape. We tried different brokers, kept things anonymous, and attempted to surface a price the seller might consider.
A year went by… nothing. Meanwhile, it was pretty clear this was only going to get more expensive as we grew. We needed a different approach. A fellow founder connected me to a broker who took a very different tack. Less transactional, more long-term relationship builder. He spent months getting to know the domain owner. Turns out owner was a fellow entrepreneur in the west coast… and a huge Grateful Dead fan.
So we figured, why not get creative? Something beyond just price. So I called up our investor Ronny Conway and asked if there was any way he could help set up a private meeting between the domain owner and the Grateful Dead. Ronny is one of those people who somehow makes impossible things possible. A week later he calls me back: “New York City. Halloween. 15 minutes after the concert. Done.”
The broker went back to the owner with an offer: some cash, some equity, and a private meeting with the Grateful Dead. That got his attention. He didn’t take the band meeting in the end, but he did lean into the equity (great call, in hindsight). We shook hands, and a few weeks later, the deal was done.
I’ve been waiting years for the day we move our product to https://t.co/BxoFvc83VG. Looks like 2026 is finally the year. Safe to say I’m unreasonably excited about this update!
Ground your agents in the latest best practices with the Android Knowledge Base. 📚
This specialized Android CLI command delivers the authoritative context needed to keep your AI current beyond its initial training → https://t.co/zGyZFiccUV
Someone built a compiler backend that lets you write Rust and run it on the JVM 🦀
The project is rustc_codegen_jvm, it hooks into rustc, takes Rust's MIR, and compiles it all the way down to real Java bytecode.
And it just hit a big milestone: unions are now supported, meaning unsafe Rust code can now compile and run on the JVM.
Recent features shipped:
→ Traits & dynamic dispatch
→ Generics
→ Function pointers
→ Unions (unsafe Rust!)
→ RSA encryption running as a .jar
Worth following.
🔗 https://t.co/4eopateyab
#RustLang #JVM #Java #OpenSource #CompilerEngineering
@mitsuhiko Similarly, I still use the old version before 7. They try to force you to bind to their server-dependent version. I prefer to use dropbox to synchronize.
We switched to @tan_stack. Our users now create over 1 million TanStack Start applications per week.
Full writeup on what changed and why: https://t.co/Xy3g2bYhhu
Funny how the pendulum shifts
1. "GPT wrappers are worthless" → the value acrues to application layer
2. "AI will eliminate white collar jobs" → someone needs to manage all these AI agents and everyone is now saying white collar workers will rise due to AI
3. "Open source will never catch up" → Gemma and DeepSeek are good enough for 80% of tasks
4. "I only use Claude Code, Codex is mid" → Codex is becoming a super app. Coding, docs, browser, computer use, automations, all in one surface.
4. "You need to pick a model and go deep" → model loyalty is dead, the best founders swap weekly based on the task
5. "SaaS is dead" → This was mostly true but for some SaaS margins actually improve when agents pay for their own tokens and need their own seats
6. "AutoGPT is the future" → AutoGPT died. Then agents actually got good 2 years later with Hermes, OpenClaw, and managed agents. The idea was right. The timing was wrong.
7. "Prompt engineering is a career" → lasted about 18 months as a job title. Workflow engineering replaced it.
8. "Computer use is a gimmick" → "sent from computer use/ai agent will be the new sent from iphone
9. "AI design looks generic" → the generic look is a taste problem not a technology problem. The founders feeding their agents references from Japanese packaging, brutalist architecture, and 1960s print are getting beautiful output.
10. "Fine-tuning is the moat" → a well-structured Obsidian vault with good markdown files outperforms fine-tuning for most use cases and costs nothing.
11. "Benchmarks tell you which model to use" → benchmarks tell you which model won a test. I think we're all waking up to this lol.
12. "AI will consolidate into 2-3 winners" → AI is fragmenting into thousands of vertical applications built on commodity models. The consolidation is at the model layer. The explosion is at the application layer. Both are happening simultaneously.
13. "The hard part is building" → the hard part is choosing what to build. Building takes a weekend. Choosing the right thing to build takes taste, domain knowledge, and customer conversations. thats why i built https://t.co/a5ARFnvky2 to make it easier for you.
14. "The terminal is the future" → desktop apps just ate the terminal. Claude Code desktop, Codex app, both shipped GUI versions in the same month. The next 100 million agent users will never open a terminal (thank god).
I guarantee you I'm holding at least 2-3 beliefs right now that will look stupid by Christmas. I just don't know which ones. Neither do you. No one does. Build anyway.
Keep moving because this is the greatest time to be building.
I'm rooting for you.