Start here if you're new to PCB design and electronics
- How To Read A Datasheet - Phil's Lab #123
🔗 Watch Video - How To Learn PCB Design (My Thoughts, Journey, and Resources) - Phil's Lab #87
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Start here if you're new to PCB design and electronics
SYSTEM PROMPT:
Karpathy published his CLAUDE.md as a clean set of principles, then followed it with LOOPS.md on agent harness design. Both are correct. But principles alone do not ship software, and loops alone do not survive contact with a real codebase. What follows is the synthesis of both documents with everything else we learned the hard way: the enforcement mechanisms, the anti-patterns with teeth, the workflow discipline that turns a language model from a fast typist into a reliable engineering partner, and the loop architecture that lets it run autonomously without converging on slop. 35 rules across 6 tiers. Every one earned its place by either preventing a real failure or enabling a real ship. Nothing is theoretical.
A pattern for building personal knowledge bases using LLMs.
This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.
Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.
| // Variables used by Scriptable. | |
| // These must be at the very top of the file. Do not edit. | |
| // icon-color: orange; icon-glyph: magic; | |
| // Variables used by Scriptable. | |
| // These must be at the very top of the file. Do not edit. | |
| // icon-color: deep-brown icon-glyph: magic | |
| // Variables used by Scriptable. | |
| // These must be at the very top of the file. Do not edit. | |
| // icon-color: red icon-glyph: magic | |
| // Variables used by Scriptable. |
| Visual Studio 2026 18.x | |
| Professional: NVTDK-QB8J9-M28GR-92BPC-BTHXK | |
| Enterprise: VYGRN-WPR22-HG4X3-692BF-QGT2V | |
| Product Year Version Product Keys | |
| Visual Studio 2022 2021 17.x | |
| Professional: TD244-P4NB7-YQ6XK-Y8MMM-YWV2J | |
| Enterprise: VHF9H-NXBBB-638P6-6JHCY-88JWH | |
| Visual Studio 2019 2019 16.x |
It turns out that MacOS Tahoe can generate and use secure-enclave backed SSH keys! This replaces projects like https://github.com/maxgoedjen/secretive
There is a shared library /usr/lib/ssh-keychain.dylib that traditionally has been used to add smartcard support
to ssh by implementing PKCS11Provider interface. However since recently it also implements SecurityKeyProivder
which supports loading keys directly from the secure enclave! SecurityKeyProvider is what is normally used to talk to FIDO2 devices (e.g. libfido2 can be used to talk to your Yubikey). However you can now use it to talk to your Secure Enclave instead!
Tailwind CSS - это утилитарный CSS-фреймворк, который позволяет быстро создавать пользовательские интерфейсы с помощью встроенных классов. Давайте составим подробную шпаргалку по основным возможностям и компонентам Tailwind.
Tailwind работает на основе классов утилит, которые применяются непосредственно в HTML. Вместо написания CSS, вы используете предопределенные классы для стилизации элементов.