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cv-by-jd.com

cv-by-jd.com

@cvByJd

https://t.co/iMhm2eTx7g | No fluff 🙌 just resumes that work

Katılım Eylül 2025
232 Takip Edilen26 Takipçiler
Cheng Lou
Cheng Lou@_chenglou·
My dear front-end developers (and anyone who’s interested in the future of interfaces): I have crawled through depths of hell to bring you, for the foreseeable years, one of the more important foundational pieces of UI engineering (if not in implementation then certainly at least in concept): Fast, accurate and comprehensive userland text measurement algorithm in pure TypeScript, usable for laying out entire web pages without CSS, bypassing DOM measurements and reflow
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Andrej Karpathy
Andrej Karpathy@karpathy·
Wow, this tweet went very viral! I wanted share a possibly slightly improved version of the tweet in an "idea file". The idea of the idea file is that in this era of LLM agents, there is less of a point/need of sharing the specific code/app, you just share the idea, then the other person's agent customizes & builds it for your specific needs. So here's the idea in a gist format: gist.github.com/karpathy/442a6… You can give this to your agent and it can build you your own LLM wiki and guide you on how to use it etc. It's intentionally kept a little bit abstract/vague because there are so many directions to take this in. And ofc, people can adjust the idea or contribute their own in the Discussion which is cool.
Andrej Karpathy@karpathy

LLM Knowledge Bases Something I'm finding very useful recently: using LLMs to build personal knowledge bases for various topics of research interest. In this way, a large fraction of my recent token throughput is going less into manipulating code, and more into manipulating knowledge (stored as markdown and images). The latest LLMs are quite good at it. So: Data ingest: I index source documents (articles, papers, repos, datasets, images, etc.) into a raw/ directory, then I use an LLM to incrementally "compile" a wiki, which is just a collection of .md files in a directory structure. The wiki includes summaries of all the data in raw/, backlinks, and then it categorizes data into concepts, writes articles for them, and links them all. To convert web articles into .md files I like to use the Obsidian Web Clipper extension, and then I also use a hotkey to download all the related images to local so that my LLM can easily reference them. IDE: I use Obsidian as the IDE "frontend" where I can view the raw data, the the compiled wiki, and the derived visualizations. Important to note that the LLM writes and maintains all of the data of the wiki, I rarely touch it directly. I've played with a few Obsidian plugins to render and view data in other ways (e.g. Marp for slides). Q&A: Where things get interesting is that once your wiki is big enough (e.g. mine on some recent research is ~100 articles and ~400K words), you can ask your LLM agent all kinds of complex questions against the wiki, and it will go off, research the answers, etc. I thought I had to reach for fancy RAG, but the LLM has been pretty good about auto-maintaining index files and brief summaries of all the documents and it reads all the important related data fairly easily at this ~small scale. Output: Instead of getting answers in text/terminal, I like to have it render markdown files for me, or slide shows (Marp format), or matplotlib images, all of which I then view again in Obsidian. You can imagine many other visual output formats depending on the query. Often, I end up "filing" the outputs back into the wiki to enhance it for further queries. So my own explorations and queries always "add up" in the knowledge base. Linting: I've run some LLM "health checks" over the wiki to e.g. find inconsistent data, impute missing data (with web searchers), find interesting connections for new article candidates, etc., to incrementally clean up the wiki and enhance its overall data integrity. The LLMs are quite good at suggesting further questions to ask and look into. Extra tools: I find myself developing additional tools to process the data, e.g. I vibe coded a small and naive search engine over the wiki, which I both use directly (in a web ui), but more often I want to hand it off to an LLM via CLI as a tool for larger queries. Further explorations: As the repo grows, the natural desire is to also think about synthetic data generation + finetuning to have your LLM "know" the data in its weights instead of just context windows. TLDR: raw data from a given number of sources is collected, then compiled by an LLM into a .md wiki, then operated on by various CLIs by the LLM to do Q&A and to incrementally enhance the wiki, and all of it viewable in Obsidian. You rarely ever write or edit the wiki manually, it's the domain of the LLM. I think there is room here for an incredible new product instead of a hacky collection of scripts.

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cv-by-jd.com
cv-by-jd.com@cvByJd·
@trq212 keyboard shortcuts not working like command and delete to clear whole line open delete to clear word
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Thariq
Thariq@trq212·
not an April Fools joke, we rewrote the Claude Code renderer to use a virtual viewport you can use your mouse, the prompt input stays at the bottom, and a lot more small UX wins people have been asking for it's experimental so give us your feedback
Boris Cherny@bcherny

Today we're excited to announce NO_FLICKER mode for Claude Code in the terminal It uses an experimental new renderer that we're excited about. The renderer is early and has tradeoffs, but already we've found that most internal users prefer it over the old renderer. It also supports mouse events (yes, in a terminal). Try it: CLAUDE_CODE_NO_FLICKER=1 claude

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Tech Layoff Tracker
Tech Layoff Tracker@TechLayoffLover·
Meta just confirmed 16,000 layoffs but sources inside are telling me the real bloodbath is still coming Word is they're sitting on approval for another 12,000 cuts. Total elimination could hit 28,000 by March Got a DM from someone in Menlo Park facilities: they're already deactivating badge access for entire floors in MPK 20 and 21 The surviving engineers are being handed "AI collaboration protocols" - basically playbooks for working with agents that do 60% of what their dead teammates used to handle One source showed me the internal deck: "human-AI optimal ratios" calculated down to the exact headcount per product area Reality Labs? 4,200 people last month. Targeting 800 by summer. The rest replaced by AI simulation tools and offshore contractors running Cursor They're calling it "efficiency at scale" but the engineering director I talked to said it differently: "we're training the machine to make us obsolete and calling it innovation" Most brutal part: the knowledge extraction is already complete. Every code review, every architectural decision, every debugging session from the past 18 months - all logged, all catalogued, all feeding the replacement systems Senior staff engineers with 8+ years at Meta getting managed out while watching their documented expertise train the models that eliminate their roles The $135 billion AI spend isn't just R&D. It's severance costs and replacement systems rolled into one number One insider told me: "Zuck isn't building the metaverse anymore. He's building the post-engineer reality" If you're still at Meta and reading this - the list is already made
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Dr Gill
Dr Gill@ikpsgill1·
Hey @adidas I got injured and got this scar, now permanent brand ambassador, can I get your best shoes as a gift
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Claude
Claude@claudeai·
This is Claude Sonnet 4.6: our most capable Sonnet model yet. It’s a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. It also features a 1M token context window in beta.
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kammo ji
kammo ji@kammoji247·
✨ APPLIED ✨ INTERVIEWED ✨ OFFER LETTER ✨ HIRED All happening this February–March. Your turn is coming soon. 💯🚀
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cory
cory@corysimmons123·
@cvByJd @claudeai I couldn't see what was wrong with the response until I read the replies. I'm not sentient.
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cv-by-jd.com
cv-by-jd.com@cvByJd·
@l1ghtst0ne @claudeai can’t say useless, when we keep talking about AGI and 100x increase in valuation in 2 years and a trillion dollar ipo
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lightstone
lightstone@l1ghtst0ne·
@cvByJd @claudeai It’s very telling about people that obsess over models getting useless gotcha questions wrong when they can literally provide 10x productivity boosts and change your life if used correctly. ngmi.
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