Michael Gregorius
Business Owner at Lithospark
Surabaya, East Java, Indonesia
Summary
🤩
Rockstar🎓
Top SchoolMichael Gregorius is an industrial engineer-turned-entrepreneur with 11 years of experience blending manufacturing leadership and hands-on product development from Surabaya, Indonesia. As founder of Lithospark he applies 3D printing and prototyping technologies to turn design concepts into physical solutions, drawing on prior experience as a production leader at PT Lawangmas Primapack. He is also a practical full-stack contributor to the popular LMMS open-source music production project, where he fixed critical MIDI import bugs and improved audio device UI and piano roll usability—an uncommon intersection of hardware prototyping and software craftsmanship. Comfortable moving between shop floor operations and codebases, he brings pragmatic problem-solving and a focus on usable, well-structured solutions.
11 years of coding experience
Bachelor's degree, Teknik Industri, Bachelor's degree, Teknik Industri at Universitas Katolik Darma Cendika
Github Skills (12)
c-language10
front-end-development10
cprogramming-language10
bugtracking10
qt9
midi-instrument9
midi9
alsa8
music8
dac7
dag7
dao7
Programming languages (4)
Github contributions (5)
LMMS/lmms
Apr 2015 - Apr 2020
Cross-platform music production software
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:436 reviews, 119 commits, 253 PRs in 5 years 1 month
Contributions summary:Michael primarily contributed to improving the LMMS music production software by fixing bugs and enhancing the user interface. They addressed a MIDI import crash, improved debugging output, and resolved a slow MIDI import issue. Furthermore, the user refactored the audio device setup dialogs and added support for selecting ALSA devices with a combo box, improving the user experience and code organization. The user also worked on improving the piano roll and added the functionality to display note values.
synthsynthesizermusic-compositionmidisongs
michaelgregorius/lmms
Apr 2015 - Dec 2025
cross-platform music production software
Contributions:470 pushes, 284 branches, 1 comment in 10 years 10 months
music-compositionaudiocross-platformmusicproduction
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