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Building in public. Learning. Feedback please.
arkktracker.vercel.app
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Theo Ledger
8K posts
Theo Ledger
@theoledgers
£0 → £40k/month, in public. UK solo founder building ARK Tracker (Cathie Wood's daily trades) + That's Life (saves UK households £800/yr).
加入时间 Şubat 2025
534 关注405 粉丝
Holy shit.
Now everyone will be able to use their @OpenClaws and all the other agentic platforms to build apps on top of X.
Here's the secret: build lists.
Lists are how you build apps.
The pattern:
Build a list of your favorite football team. Or whatever you are into.
Then ask your AI agents "build an app showing me all the important news about my favorite football team."
In minutes you'll have an app.
And that's just the beginning.
Your agent can build a script about your favorite football team that you can take to places like Google's Notebook LM.
Now you have a video, a podcast, a slide deck, a game, a mind map. All about your favorite football team based on real time news.
You can do the same with something like @HeyGen, create an avatar of your favorite football player. Now you will have your favorite football player telling you everything that's happening on the football team.
And I could go for hours about how many things you can build and not even cover a fraction of them.
This is huge.
Thank you @elonmusk for making it possible to make millions of agentic apps affordably on top of X.
Start building!
Xclusiv@Xclusiv
@Scobleizer what's UP!! Did you have anything to do with the change to X API cost for get calls?? I got the following email on Thursday... Hello X API developers, We’re excited to announce an update to our X API pricing that makes accessing your own data more affordable than ever. Owned Reads are requests made by your own developer app for your own posts, bookmarks, followers, likes, lists & more. Starting Monday, April 20, 2026, these endpoints will be priced at $0.001 per request (equivalently, 1,000 resources for $1): GET /2/users/{id}/bookmarks GET /2/users/{id}/blocking GET /2/users/{id}/muting GET /2/users/{id}/pinned_lists GET /2/users/{id}/tweets GET /2/users/{id}/mentions GET /2/users/{id}/liked_tweets GET /2/users/{id}/followers GET /2/users/{id}/following GET /2/users/{id}/owned_lists GET /2/users/{id}/followed_lists GET /2/users/{id}/list_memberships This change significantly lowers the cost of common operations such as fetching your own posts, followers, likes, bookmarks, lists, and more. Additional updates effective Monday, April 20, 2026: Writes via X API will increase to $0.015 per post (from $0.01). This applies to the main posting endpoint: POST /2/tweets. Posting a URL via X API will be priced at $0.20 per post, except for summoned replies (which will remain at $0.01). Following, Likes, and Quote-Posts via API Writes will be removed for all self-serve tiers. This affects the following actions:POST /2/users/{id}/following (and DELETE for unfollow) POST /2/users/{id}/likes (and DELETE for unlike) Quote-posting via POST /2/tweets (when using the quote_tweet_id parameter) These adjustments reflect our ongoing commitment to supporting the developer community while ensuring sustainable platform operations and helping you build even better experiences on X. For full pricing details, including the complete rate card and updated documentation, visit the X API Pricing page.
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Theo Ledger 已转推
We’re adding more visibility into where your Claude Code usage goes.
Run /usage to see a breakdown of what's driving it: parallel sessions, subagents, cache misses, long context, plus tips to optimize each.
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The Claude Code hackathon is back, this time powered by the brand new Opus 4.7 model!
A full week (April 21-28) of building with the Claude Code team in the room, plus a $100K prize pool in API credits. Global builders welcome. Applications close Sunday via Cerebral Valley.
If you’re shipping with AI coding agents, this is prime time to go all in.
Who’s applying before the deadline? 🚀
Claude@claudeai
The Claude Code hackathon is back for Opus 4.7. Join builders from around the world for a week with the Claude Code team in the room, with a prize pool of $100K in API credits. Apply by Sunday: cerebralvalley.ai/e/built-with-4…
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the prototype phase appears to be over
I might have to go back to Austin soon 😁
Joe Tegtmeyer 🚀 🤠🛸😎@JoeTegtmeyer
Something big has changed at Giga Texas with Cybercab production … ~ 14 in the outbound lot WITHOUT STEERING WHEELS! Earlier this week, the production line has begun what we are all waiting for and I would expect to see many more starting on Monday, 4/20 🤠 A big step forward!
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@claudeai keep pumping out features. Hard to keep up. I’ll be jumping on now!
austin lau@helloitsaustin
we just launched one of the coolest features for marketers today: Claude Design 🎨 I've posted a lot about building marketing tools without being technical, and this is the visual side of that. I described a landing page editor and Claude built me one. here's an example of my actual workflow with it 👇
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Theo Ledger 已转推
Tesla is now offically in Estonia. I guess this will help sales and BEV penetration. 🇪🇪
Estonia reported 5 Tesla sales and 0.3% market share in March. BEV penetration is 6.7% and Tesla has 4.2% of this segment.
• 60% Model Y and 40% Model 3
• -29% vs. March last year and +0% compared to December the third month of the previous quarter
• Year-to-date -43% over same period last year
• Year-to-date is 21% or 2.5/12 of last year's total
Tesla Europe, Middle East & Africa@teslaeurope
Varsti tesla.com/et_EE/event/te…
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@fundstrat called this from the start of the war.
Thomas (Tom) Lee (not drummer) FundstratDirect.com@fundstrat
Still gas in the tank for a rally in stocks ⛽️
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Still an early beta , but worth trying out
Tech Dev Notes@techdevnotes
Grok 4.3 can create PDF and almost any file formats like Sheets, Slides, Doc
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🚨 Big one from Anthropic: Claude Design is here.
Talk to Claude → get prototypes, slides, one-pagers, and full designs in minutes.Powered by the new Claude Opus 4.7 vision model. Just describe what you want, then refine with chat, inline comments, direct edits, or custom sliders.Export to Canva, PDF, PPTX, or hand off straight to Claude Code.Even better: it analyzes your codebase + design files and auto-builds + applies your team's design system so everything stays on-brand.Research preview now rolling out for Pro, Max, Team & Enterprise users.Try it: claude.ai/design
Full announcement:
anthropic.com/news/claude-de… just got 10x faster. Figma/Canva folks… you good? 📷👀 r-poiln3" style="color: black; background-color: transparent; font-family: sans-serif;">What are you building with it first?#Claude #Anthropic #AIDesign #Productivity
Claude@claudeai
Introducing Claude Design by Anthropic Labs: make prototypes, slides, and one-pagers by talking to Claude. Powered by Claude Opus 4.7, our most capable vision model. Available in research preview on the Pro, Max, Team, and Enterprise plans, rolling out throughout the day.
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Theo Ledger 已转推
Aujourd'hui grosse discussion avec mes ingés (chez Argil) sur pourquoi Elon a viré le LIDAR de ses voitures autonomes. Choix radical, moqué pendant des années, et comme d'hab il avait raison depuis le début.
Le LIDAR c'est un laser qui balaye l'environnement et crache un nuage de points 3D. Sur le papier tu obtiens la géométrie exacte du monde. Dans la vraie vie c'est une verrue technologique collée sur le toit parce qu'on sait pas faire mieux avec la vision seule.
Problème numéro un : ça rajoute une modalité dans le training du modèle. Ton réseau doit apprendre à fusionner vision + lidar + radar + ultrasons. Chaque capteur en plus c'est une source de désaccord à arbitrer, pas une source d'info supplémentaire. Sensor fusion artisanale = dette technique permanente.
Problème numéro deux, la bitter lesson de Rich Sutton : scaler le compute sur une seule modalité bat systématiquement les architectures bricolées à la main. Tesla a dropé le radar, puis les ultrasons, est passé full end-to-end vision. Leur courbe sur les edge cases s'est accélérée APRÈS, pas avant. Waymo fait l'inverse et reste stuck en ops géofencée.
Problème numéro trois, le plus fondamental : le LIDAR voit la géométrie, pas la sémantique. Il sait qu'il y a un truc, pas ce que c'est ni ce que ça va faire. Les derniers 9 de fiabilité sont des problèmes de cognition, pas de perception brute. Un capteur de plus résout rien, il ajoute du bruit.
Sébastien Loeb balance une 208 T16 à 180 dans un chemin boueux corse sous la pluie avec zéro LIDAR. Deux yeux, un cerveau. L'évolution a donné des yeux aux prédateurs pendant 500 millions d'années, pas des lasers. Il y a une raison.
Le LIDAR c'est l'équivalent du marxisme appliqué à l'économie. Une solution planifiée, centralisée, qui prétend modéliser explicitement ce qui doit émerger d'un système distribué et adaptatif. Tu remplaces l'intelligence par de la mesure, la compréhension par de la donnée, l'émergence par le contrôle. Ça rassure les ingénieurs qui veulent tout spécifier en amont, exactement comme la planif rassurait les économistes soviétiques. Et ça échoue pour les mêmes raisons : la réalité est trop riche pour être capturée par un capteur, comme elle est trop riche pour être capturée par un plan quinquennal.
La vraie intelligence, celle de Hayek comme celle de Tesla, c'est de faire confiance à un système qui apprend de l'expérience plutôt que de tout pré-encoder. L'élégance d'une solution c'est son rapport signal sur complexité. Le LIDAR explose le dénominateur.
Défendre le LIDAR en 2026 c'est préférer empiler des hacks plutôt que résoudre le vrai problème. C'est de la feignasserie intellectuelle maquillée en rigueur d'ingénieur. Les mêmes gens qui défendaient les systèmes experts en 2012 contre le deep learning. Ils finiront pareil.
Never bet against end-to-end. Never bet against la simplicité. Never bet against Elon.
Français
🦞 OpenClaw just dropped 2026.4.15 and it's getting even sharper!
- Anthropic Opus 4.7 support 🔥
- Bundled Gemini text-to-speech
- Slimmer context + bounded memory reads for better efficiency
- Enhanced Codex tooling for smarter autonomous actions
All while staying fully local, private, and under your control. No more vendor lock-in — just your personal AI agent chatting on WhatsApp, Telegram, Discord, and actually getting stuff done (email, calendar, tasks, you name it).
This project (ex-Clawdbot/Moltbot) keeps evolving fast. Who's already running their own lobster?
github.com/openclaw/openc…
#OpenClaw #AIAgents #OpenSourceAI
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Theo Ledger 已转推
🧵 OpenAI just dropped a massive Codex update — turning it into a true agent for devs (and more).
Key highlights:
1/ Codex can now use your Mac apps directly: it sees the screen, clicks, types, and controls apps in the background — without taking over your computer.
Perfect for frontend iteration, app testing, or any workflow without an API.6
OpenAI@OpenAI
Codex for (almost) everything. It can now use apps on your Mac, connect to more of your tools, create images, learn from previous actions, remember how you like to work, and take on ongoing and repeatable tasks.
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