Guido Cella
Software Developer
Apulia, Italy
Summary
🤩
RockstarGuido Cella is a seasoned software developer based in Apulia, Italy, with 11 years of hands-on experience across backend, full-stack and QA/test automation. He contributes actively to notable open-source projects—improving mpv's subtitle handling and the dwl Wayland compositor by adding features like zoom, killclient and drag-and-drop—demonstrating depth in systems-level and multimedia code. His Laravel and Codeception contributions show a pragmatic focus on API ergonomics and test reliability, from new collection helpers to richer assertion APIs. Comfortable working close to the platform, he fixes subtle bugs (e.g., Firefox class quirks, memory leaks, and multi-timestamp LRC rendering) that improve user-facing reliability. Guido pairs practical engineering with attention to edge cases and documentation, making his patches both robust and maintainable.
11 years of coding experience
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (28)
application-framework10
unit-testing10
composition10
laravel-mix10
testing10
app-framework10
c1110
laravel10
ws10
phpunit10
tiling10
c1710
php10
subtitle10
compositing10
Programming languages (13)
Github contributions (5)
mpv-player/mpv
Aug 2019 - Aug 2022
🎥 Command line media player
Role in this project:
Back-end Developer
Back-end DeveloperContributions:422 reviews, 73 commits, 410 PRs in 3 years
Contributions summary:Guido contributed to the mpv media player, focusing on improvements to the handling and rendering of subtitles. They added support for the .lrc subtitle extension and fixed issues with subtitles, such as incorrect display of lines with multiple timestamps in LRC files, and incorrect positioning when seeking. Their work also included enhancements related to the handling of playlist and chapter information, ensuring accurate display and selection of entries, and the correction of a memory leak. Additionally, the user made several documentation improvements related to subtitle options.
mpvlibavplayeraudiovideo-player
djpohly/dwl
Jul 2020 - Mar 2022
dwm for Wayland
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:91 commits, 17 PRs, 53 comments in 1 year 8 months
Contributions summary:Guido primarily contributed to the dwl Wayland compositor, adding features and modifying existing code. Their work included implementing new functionalities such as `killclient`, `zoom`, and layout toggling. They also fixed a Firefox class and integrated features from wlr (wlroots), showing a strong understanding of the project's core components. Furthermore, the user added support for features like gamma control and drag and drop, demonstrating active development and a desire to improve the project.
xorgwaylandx11tilingcompositor
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