1 min read
Why I Migrated From Jest to Vitest
ESM packages broke Jest. Tried to fix it. Could not. Switched to Vitest.
vitestjesttesting+2
Read
Engineering Log
Thinking in Public
A collection of technical deep dives, random experiments, and notes on software engineering.
3 min read
From Bash to CLIPart 6
The Numbers After All the Fixes
Baseline comparison across NestJS, Spring Boot, and Go at 1 CPU / 512MiB. Plus Express vs Fastify, virtual threads, and what surprised me.
green-algeria-mapbenchmarkgo+2
Read3 min read
From Bash to CLIPart 5
6 Bugs That Made My Benchmark Wrong
The benchmark pipeline ran. The numbers looked reasonable. They were wrong six different ways.
green-algeria-mapbenchmarktesting+2
Read2 min read
From Bash to CLIPart 4
From v0.1.0 to v1.0.0: Refining a CLI
The rewrite landed with 4 subcommands and consola. Three days later it had a live status bar, CPU pinning, profile system, and one less subcommand.
green-algeria-mapbuncli+2
Read2 min read
From Bash to CLIPart 3
Building a CLI With Bun and Citty
How the benchmark pipeline was rewritten from bash to a Bun CLI with typed subcommands, config, and a full pipeline orchestrator.
green-algeria-mapbuncli+2
Read2 min read
From Bash to CLIPart 2
When a Benchmark Needs More Than a Script
The benchmark kept growing. More backends, shared Postgres, sequential orchestration, a compare script. Each addition made sense. Together they outgrew the script.
green-algeria-mapgobash+1
Read2 min read
From Bash to CLIPart 1
From Bash to CLI: When a Quick Benchmark Gets Serious
How the Green Algeria Map benchmark pipeline started as a quick comparison between two backends and grew into something that needed a real CLI.
green-algeria-mapclibash+1
Read3 min read
Java JourneyPart 3
Java 25 Playground
A hands-on tour of Java 25: flexible constructors, scoped values, and primitive patterns.
javajava25jep
Read2 min read
Building Green Algeria MapPart 1
Choosing the Stack
Why Green Algeria Map uses React 19, TanStack Router, NestJS, and Tailwind v4.
green-algeria-mapreactnestjs+2
Read2 min read
Vitest: One Framework, Two Test Types
Run unit and integration tests from the same codebase with separate Vitest configs and file suffix conventions.
vitesttestingtypescript
Read3 min read
Scaffolding a Modern Stack
What it looks like to start a real project with React 19, TanStack Router, Tailwind CSS v4, shadcn/ui, and GitHub Actions from day one.
reacttanstack-routertailwind+2
Read2 min read
Java JourneyPart 2
How Java Ships: JEPs, CSR, and the 6-Month Train
A quick map of how Java features move from JEP idea to general availability (GA) and how to try them without surprises.
javajeprelease cadence
Read1 min read
Java JourneyPart 1
Why I'm Deepening My Java Skills in 2026
My 2026 Java deep-dive plan: JVM behavior, performance habits, and consistent weekly output.
javalearningjvm+1
Read