Damien Cassou
Software Engineer at finsit Wolters Kluwer
Brest, Brittany, France
Summary
🤩
RockstarDamien Cassou is a seasoned software engineer with 18 years of experience who transitioned from an academic role as an associate professor to full-time software development. Based in Brest, France, he brings deep expertise in Emacs ecosystem tooling, contributing to high-profile projects like Magit, GNU Emacs, use-package, and swiper to improve developer workflows and editor ergonomics. His work spans full-stack Emacs Lisp development, backend enhancements, and DevOps contributions to Nix home-manager, demonstrating fluency across tooling, CI, and system configuration. Damien focuses on usability and maintainability—adding Imenu/xref support, breakpoint and evaluation improvements, and practical features like git-ignore wildcards and async file commands. He has a knack for bridging research-grade rigor with pragmatic engineering, often improving obscure editor internals that materially boost developer productivity.
18 years of coding experience
Stackoverflow
2,559reputation
50kreached
44answers
28questions
Github Skills (51)
debugging10
ivy10
git10
debug10
javascript10
develop10
package-management10
nix10
testing10
configuration-management10
nixos10
el10
recipe10
home-manager10
magit10
Programming languages (34)
Github contributions (5)
NicolasPetton/Indium
Dec 2016 - Nov 2019
A JavaScript development environment for Emacs
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:23 commits, 8 PRs, 26 comments in 3 years
Contributions summary:Damien contributed significantly to the `indium` project, which provides a JavaScript development environment for Emacs. Their work involved adding and modifying features related to breakpoint management, including the ability to set and edit breakpoint conditions. They also refactored the codebase to improve the evaluation of expressions within different call frames. Furthermore, the user made improvements to the project's build process, including CI.
javascript-developmentjavascriptchromeemacsinspector
nix-community/home-manager
May 2020 - Oct 2022
Manage a user environment using Nix [maintainer=@rycee]
Role in this project:DevOps Engineer
DevOps EngineerContributions:49 reviews, 20 commits, 38 PRs in 2 years 5 months
Contributions summary:Damien primarily contributed to improving the home-manager configuration within the nix-community/home-manager repository. Their work involved integrating new modules and functionalities, such as adding support for powerline-go, clipmenu, borgmatic, and copyq. Furthermore, the user enhanced the system's capabilities by introducing features like container support for firefox, which improved the overall user experience. The user's commits also included modifications to existing modules, ensuring compatibility with the latest software versions, which improved the usability and maintainability of the project.
nix-dotfilesnixosmaintainerhome-managerdotfiles
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.