Sultanfariz / Notebook

Learnings

Permanent, visual references built while learning. Intuition first, then the math, then worked numbers.

Briefings 1

GGUF — Local AI Model Format Describes GGUF, a single-file format bundling model weights, tokenizer, and config for local quantized inference. 2026-07-01gguf-briefing.html

Go 7

Lesson 1 — io.Pipe & io.LimitReader Explains why buffering an 80 MB webhook video in RAM caused OOM, and how io.Pipe and io.LimitReader fixed it. 2026-07-05go-lessons/0001-io-pipe-limitreader.html
Lesson 2 — Why the reserved-URL path can't stream Explains why the streaming OOM fix covered only one of two upload paths, leaving reserved URLs buffered. 2026-07-05go-lessons/0002-why-reserved-url-cant-stream.html
Lesson 3 — Streaming the reserved URL path + OOM improvements Shows the real httpkit PostForm source with io.Pipe, then streams the reserved URL path and adds OOM improvements. 2026-07-05go-lessons/0003-reserved-url-streaming-and-oom-improvements.html
Lesson 4 — DownloadAndUploadFile vs DownloadAndUploadToReservedURL Both functions stream a provider video URL into a multipart POST without buffering, but target different servers. 2026-07-07go-lessons/0004-upload-file-vs-reserved-diff.html
Lesson 5 — Corrections: what adversarial review caught in Lesson 4 An adversarial review checked Lesson 4 against httpkit source and GCS docs, recording each correction needed. 2026-07-07go-lessons/0005-lesson4-corrections.html
Lesson 6 — Heap vs Stack & Escape Analysis in Go Each goroutine gets its own small stack; the compiler decides at compile time which values go on the heap. 2026-08-07go-lessons/0006-heap-vs-stack-and-escape-analysis.html
Desk & Cabinet — what really escapes to the Go heap Trace one struct through newUser() to see what lands on the desk (stack) versus the cabinet (heap). 2026-08-10go-lessons/0007-escape-simulation-artifact.html

IndexedDB 1

IndexedDB Explained — Browser Storage for Humans Explains why localStorage falls short and how IndexedDB offers a real, searchable database inside the browser. 2026-06-30indexeddb-explainer/indexeddb-explainer.html

Langfuse 1

Lesson 1 — What Langfuse is (and why "Lang" is a trap) The "Lang" tools split into two layers: frameworks that make LLM calls, and Langfuse, which observes them. 2026-07-17langfuse-lessons/0001-what-is-langfuse.html

LLM Fundamentals 6

Reference 4

SuperBPE 2

Supply-Chain Security 1

INCIDENT REPORT — Mini Shai-Hulud / CVE-2026-45321 Incident report on a self-replicating npm worm planted in 42 @tanstack packages on May 11, 2026. 2026-06-29shai-hulud-supply-chain/shai-hulud-tanstack.html