t4mer@notebook

// essay · notebook · 16 august 2026 · 1 min

Start here

A short map of this notebook.

Updated 20 Aug 2026

This site is a notebook, not a tutorial mill. If you only have a few minutes, read these four. They are from the work.

A problem

HTTP 421 and the Host header

The request looked identical in Postman and in Laravel. It was not. This is the Problem Log: symptoms, failed attempts, cause, fix, and how much afternoon it consumed.

Cache

How I think about Redis caching in Laravel

Faster is easy. Wrong and fast is the expensive version. Invalidation, stampedes, and what I refuse to put in Redis.

Infrastructure

Running SRS as a media server

A media path is not a website with extra ports. RTMP in, HLS and WebRTC out, and why HTTPS alone does not make video work.

An essay

The framework is usually not the hard part

Not a how-to. How the work looks after enough years in production.


After that, wander.

  • Problem Log - specific incidents
  • Notes - longer writing
  • TIL - small discoveries
  • Topics - the same notes, grouped by idea
  • About - résumé: bio, roles, and expertise
  • Projects - current work, and work that shipped

C++ and Qt live in a labelled series. They are learning notes, not the front door.

Found something wrong?

These notes can be incomplete, or wrong in a different environment. Suggest a correction on GitHub or email me at me@t4mer.net.