Luiz Picanço

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Luiz Picanço

Luiz Picanço

@lpicanco

Software Engineer 🦀 If you build it, they will come

Lisbon, Portugal Katılım Temmuz 2007
312 Takip Edilen337 Takipçiler
Vinicius Fonseca
Vinicius Fonseca@distanteagle16·
Booleano no Java tem três valores possíveis
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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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Futebol na TV
Futebol na TV@futnatv·
Eu gosto do conceito da apuração de carnaval pq é uma planilha de Excel sendo preenchida lentamente durante 2 horas. Isso transmitido em rede nacional e assistido por milhões de pessoas. Um negócio que levaria 3 segundos pra ter o resultado se fosse feito de forma eletrônica.
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Mitchell Hashimoto
Mitchell Hashimoto@mitchellh·
As promised, the Ghostty search UI for GTK is on the way (PR is open). There's polish to do, but it's fully functional. For those who haven't paid attention, the macOS app (in tip) already has this.
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eepy
eepy@eepyware·
Sooo. Apparently. Cloudflares outage was caused by a single oversized configuration file used for bots and threat related blocks. The file which auto generates from live threat intel, grew far beyond expected size. When the system reloaded it during routine opss, the bot management service crashed, triggering 500 errors across the global CDN. Surprisingly, it apparently was not a DNS issue (color me surprised). Just one config file that got too big and took down the interwebs for hrs.
eepy@eepyware

Are we back? Did @rekdt Get a job at cloudflare this time? First it was CrowdStrike, next AWS, then it was Microsoft, now Cloudflare? 😭 Broa collecting outages like Pokémon cards TwT. #cloudflare

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Luiz Picanço
Luiz Picanço@lpicanco·
olá, @grok com base em TODOS os meus tweets e replies, eu sou: qual artista? qual personagem fictício? qual cantor? qual anime? qual livro? qual música? qual filme? qual frase?
c4ng4c3ir0@c4ng4c3ir0

olá, @grok com base em TODOS os meus tweets e replies, eu sou: qual artista? qual personagem fictício? qual cantor? qual anime? qual livro? qual música? qual filme? qual frase?

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Linuxopsys
Linuxopsys@linuxopsys·
Useless use of cat
Linuxopsys tweet media
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Mitchell Hashimoto
Mitchell Hashimoto@mitchellh·
Ghostty 1.2 is coming out later today. If long, detailed release notes are your jam, grab a coffee and get ready to cozy up. Releasing in an hour or two.
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- Elijah Muraoka -
- Elijah Muraoka -@elijahmuraoka_·
My Uber driver just reviewed and merged a PR while driving I swear this shit only happens in SF
- Elijah Muraoka - tweet media
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zanfranceschi
zanfranceschi@zanfranceschi·
Bora participar da @rinhadebackend! Já temos mais de 215 submissões até agora e todo dia tem gente nova participando. O prazo é até dia 17 de agosto – tempo de sobra! RT pra fortalecer, por favor.
zanfranceschi tweet mediazanfranceschi tweet media
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Rinha de Backend
Rinha de Backend@rinhadebackend·
o @lpicanco foi quem cedeu gentilmente o server pra rinha desse ano e também está participando, mas houve um problema pontual na máquina e os testes pararam por alguns instantes. Devo penalizar a submissão dele por isso? 💅
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el.cine
el.cine@EHuanglu·
Holy sh*t… Text-to-CAD AI is here You can not only generate 3D models but also control their dimensions using just a text prompt. it’s only the second day of 2025
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