Solo C#/.NET developer. I build practical tools for Microsoft 365 Business and small-business day-to-day ops. Passionate about open source: I design, ship, and keep a lot of that work maintained.
I maintain a live project board showing my current work across multiple repositories:
๐ Mark's Workboard
This includes:
- Open-source libraries (e.g. FreeAgent integrations).
- Internal tools and automation.
- Ongoing improvements and experiments.
I'm a solo developer. I use AI coding tools openly, not instead of knowing how to build, but because one person can't do everything alone, and they help more of the right work actually ship.
My automation and workflow setup lives here:
๐ https://github.com/markheydon/github-workflows
- SoloDevBoard โ multi-repo GitHub workflow tool.
- Import To Planner โ CSV into Microsoft Planner, with preview before write.
- freeagent-dotnet โ API client for FreeAgent.
- Various automation utilities and experiments.
If you find my work useful, you can support it via GitHub Sponsors:
๐ https://github.com/sponsors/markheydon
It helps fund hosting, CI, and ongoing maintenance of the public tools on this board. Open source alone doesn't pay the bills, but sponsorship and paid work help keep that work production-quality.






