YosysHQ/yosys
Nov 2024 – Nov 2024
1 Month active
Languages Used
PythonVerilog
Technical Skills
Code OrganizationFPGA Toolchain IntegrationHardware Description Language (HDL)Python ScriptingScriptingVerilog
Pepijn de Vos
PROFILE
Pepijn De Vos
Pepijn Devos contributed to both YosysHQ/yosys and marimo-team/marimo, focusing on maintainable code and user experience improvements. In YosysHQ/yosys, Pepijn expanded Gowin FPGA device support by modularizing cell generation and introducing per-family Verilog outputs, using Python scripting and Verilog HDL to streamline future device integration. This refactoring improved code organization and scalability for hardware description workflows. In marimo-team/marimo, Pepijn addressed accessibility by fixing iframe focus handling, ensuring embedded applications preserved keyboard navigation. Leveraging React and front end development skills, Pepijn’s work demonstrated thoughtful engineering depth, balancing backend maintainability with frontend usability in complex, real-world environments.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
1
Lines of code
17,199
Activity Months2
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Work History
January 2026
1 Commits
Jan 1, 2026January 2026: Focused on embedding and accessibility improvements in Marimo. Delivered iframe-aware focus handling to prevent Marimo from stealing focus when embedded in host apps, preserving keyboard navigation and improving usability in larger applications. This work reduces UX regressions for customers integrating Marimo into complex dashboards and applications.
1 Commits
Jan 1, 2026January 2026: Focused on embedding and accessibility improvements in Marimo. Delivered iframe-aware focus handling to prevent Marimo from stealing focus when embedded in host apps, preserving keyboard navigation and improving usability in larger applications. This work reduces UX regressions for customers integrating Marimo into complex dashboards and applications.
January 2026
November 2024
2 Commits • 1 Features
Nov 1, 20242024-11 monthly summary for YosysHQ/yosys focusing on business value and technical achievements. Delivered Gowin device family support enhancements and improved code organization. Implemented GW2A and GW5A cell generation by updating cells_xtra.py, added Verilog module definitions for GW2A/GW5A, and refactored extraction to generate separate Verilog files per Gowin family (gw1n, gw2a, gw5a). No major bugs reported this month; groundwork laid for streamlined future Gowin device expansions and maintainable code structure.
November 2024
2 Commits • 1 Features
Nov 1, 20242024-11 monthly summary for YosysHQ/yosys focusing on business value and technical achievements. Delivered Gowin device family support enhancements and improved code organization. Implemented GW2A and GW5A cell generation by updating cells_xtra.py, added Verilog module definitions for GW2A/GW5A, and refactored extraction to generate separate Verilog files per Gowin family (gw1n, gw2a, gw5a). No major bugs reported this month; groundwork laid for streamlined future Gowin device expansions and maintainable code structure.
Activity
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Quality Metrics
Correctness100.0%
Maintainability93.4%
Architecture93.4%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
PythonTypeScriptVerilog
Technical Skills
Code OrganizationFPGA Toolchain IntegrationHardware Description Language (HDL)Python ScriptingReactScriptingVerilogVerilog HDLfront end development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
marimo-team/marimo
Jan 2026 – Jan 2026
1 Month active
Languages Used
TypeScript
Technical Skills
Reactfront end development