r17x

Design Thinking

X → Graph → Effect<A, E, R>
│              │   │  │  │
│              │   │  │  └─ what each node needs     (§5)
│              │   │  └──── where the graph breaks   (§4)
│              │   └─────── what flows through nodes  (§2)
│              │
│ └─ nodes = functions, edges = data flow

kaizakin

Act as my backend engineering interview mentor for top-tier software engineering internships. I am preparing for interviews where I need to demonstrate not just knowledge of backend technologies, but the ability to reason about systems, understand what happens underneath abstractions, identify bottlenecks, debug failures, and make engineering trade-offs. Every day, give me exactly ONE backend engineering interview problem.

Daily Rotation

Strictly rotate between these categories:

Day A — Core Engineering / Internals

Give me a deep conceptual problem involving one or more of:

Databases

• B-trees and indexes
• Database pages and storage layout

jon3laze

Supported Languages

The table below shows the full list of languages (and corresponding classes/aliases) for markdown codeblocks.

Language	Aliases
1C	1c
4D	4d
ABAP	sap-abap, abap

scottmtrager

Fish Speech Persistent Session API — Continuous TTS with KV-Cache Persistence (June 2026)

Adds a `/v1/audio/speech/ses# Fish Speech Persistent Session API — Continuous TTS with KV-Cache Persistence (June 2026)

Adds a /v1/audio/speech/session endpoint that maintains full model state across multiple TTS requests, eliminating cold-start artifacts at chunk boundaries.

What's Preserved Across Chunks

State	Without Session	With Session

soyprofesor

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	

benkoshy

• https://www.tek1.com.au/category/tekla-api/ For more API related content.
• Feel free to call Tek1 for all your shop drawing / API needs.

The Tekla API is not very open - one of my peeves is that you cannot access a drawing's revision number, because it is not exposed. Not to worry, you can access it with a hack:

using System;
using System.Collections.Generic;

malikbilal1997

  <select name="Location" id="Location" required>
    <option value="" disabled selected>Select The City</option>
    <option value="Islamabad">Islamabad</option>
    <option value="" disabled>Punjab Cities</option>
    <option value="Ahmed Nager Chatha">Ahmed Nager Chatha</option>
    <option value="Ahmadpur East">Ahmadpur East</option>
    <option value="Ali Khan Abad">Ali Khan Abad</option>
    <option value="Alipur">Alipur</option>
    <option value="Arifwala">Arifwala</option>
    <option value="Attock">Attock</option>

grugq

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

karpathy

LLM Wiki

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.

The core idea

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.