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slayerfx/README.md

Louenn Penanc'hoat

Full stack developer.

I work mostly in PHP and Python. I contribute to the PHPOffice libraries — file format support, static analysis and CI — and I build my own tools when nothing out there does quite what I need.

Portfolio → slayerfx.github.io

Projects

Strength training site, my final course project, in production.

  • Exercise library, custom workout programs, a daily energy expenditure calculator (Mifflin-St Jeor) and a map of nearby gyms
  • MVC architecture written without a framework
  • MySQL through PDO with prepared statements, PHPUnit tests on the business logic

PHP 8 MySQL JavaScript Leaflet PHPUnit Composer

Audio downloader with a local web interface: SoundCloud, YouTube, Bandcamp, Mixcloud.

  • Tracks, playlists or whole profiles, saved as tagged MP3 with cover art
  • Progress pushed live over Server-Sent Events
  • No build step, nothing loaded from a CDN
  • 36 tests, ruff linting, CI on Windows and Linux

Python FastAPI yt-dlp pytest Ruff GitHub Actions

Two PowerShell tools for my own Windows PC, documented in English and French.

  • pc-tuning checks, re-applies and undoes about forty Windows settings: Windows Update quietly reverts some of them, and a check shows exactly which
  • It saves the previous state before any change, puts Microsoft's 2023 Secure Boot certificates back after a BIOS update, and comes with BIOS and hardware guides
  • windows-disk-cleaner frees space on the system drive by deleting only what rebuilds itself, dry run first
  • Syntax, PSScriptAnalyzer and smoke tests on a Windows runner at every push

PowerShell 5.1 PSScriptAnalyzer GitHub Actions

One hand-written page: no framework, no build step, nothing loaded from a CDN.

  • Bilingual, light and dark themes, three self-hosted variable typefaces
  • A perfect 100 in every Lighthouse category
  • Every push checked four ways: markup validity, Lighthouse scores, dead links and contrast ratios
  • Contrast is checked by a dependency-free script written for this site: Lighthouse audits one theme at a time, and emulating the dark one meant pulling in 219 packages. The script caught a grey at 4.48 against a 4.5 threshold that Lighthouse had missed

HTML5 CSS JavaScript Lighthouse GitHub Actions

Open source

Eleven-week internship spent on the PHPOffice PHP libraries, May to July 2026 — 41 merged pull requests across five repositories.

Most of it went into PhpProject (209 ★, 32 PRs):

  • Four file formats implemented, reading and writing — Gnome Planner, MSPDI and ProjectLibre, plus an HTML writer rendering a Gantt chart.
  • PHPStan raised from level 1 to 6, one level per pull request, alongside declare(strict_types=1) and typed signatures across the source.
  • CI migrated from Travis to GitHub Actions — extended PHP matrix, PHPStan job, samples execution check, code coverage, Dependabot.
  • Documentation migrated from Sphinx to MkDocs, then to ProperDocs.

The remaining nine went to the other four libraries:

Project PRs Contributions
PHPPresentation · 1.4k ★ 3 Coverage under PHPUnit 10+, minimum PHP version raised, version guard on imagedestroy()
Common 3 PHPStan up to level 7, PHPStan 2.x support, PHP 8.5 in the CI matrix
PHPWord 2 PHP 8.5 support, PHPUnit constraint fixing the test suite
Math 1 PHP 8.5 in the CI matrix

Pinned Loading

  1. soundgrab soundgrab Public

    Audio downloader with a local web interface — SoundCloud, YouTube, Bandcamp, Mixcloud. Tracks, playlists, likes and whole profiles as tagged MP3 with cover art. FastAPI + yt-dlp, live progress over…

    Python 1

  2. windows-disk-cleaner windows-disk-cleaner Public

    Free up space on your Windows system drive in one double-click, without touching your files. Messages in English and French.

    PowerShell

  3. pc-tuning pc-tuning Public

    Windows, BIOS and hardware tuning for a desktop gaming and creation PC. Every Windows setting can be checked, re-applied and undone. Messages in English and French.

    PowerShell

  4. onemorerep onemorerep Public

    Strength training site in PHP 8: exercise library, custom workout programs, TDEE calculator and a nearby-gym map. MVC without a framework, MySQL through PDO, PHPUnit tests.

    PHP

  5. PHPOffice/PhpProject PHPOffice/PhpProject Public

    A pure PHP library for reading and writing project management files

    PHP 209 103

  6. PHPOffice/PHPPresentation PHPOffice/PHPPresentation Public

    A pure PHP library for reading and writing presentations documents

    PHP 1.4k 544