During March 2025, Thomas Papadopoulos focused on backend development for the HeyPuter/puter repository, addressing a persistent Windows npm install error that hindered developer onboarding and CI reliability. He resolved the spawn EINVAL issue by conditionally invoking npm.cmd on win32 platforms and enabling the shell option for child_process.spawn, ensuring compatibility across operating systems. Working primarily with JavaScript and Node.js, Thomas demonstrated careful attention to cross-platform scripting and commit hygiene. Although the period involved fixing a single bug rather than building new features, his targeted solution improved installation stability and contributed to a smoother development experience for Windows users and teams.