Skillful
Local-first platform for managing reusable AI workflows and organisational knowledge.
Rick van Lieshout
CTO, software architect and engineering leader focused on building great software, growing teams and solving complex technical challenges.
© All rights reserved.
Featured Work
A few open-source projects and tools I've built or maintained over the years.
Latest Articles
Stop seeding the whole system to test one query
When you want to know whether a GET endpoint stays fast with 100k orders, do not drag the whole system into the test. Seed the right data, test through the app, and let telemetry guide the next step.
Read (14 min read)Timezones from coordinates (lat/long): enriching ingestion with PostGIS
A datetime with an offset isn't a timezone. Here's how we use PostGIS and the Timezone Boundary Builder dataset to turn a driver's GPS coordinates into the IANA zone their planner actually needs to see.
Read (10 min read)Skillful, reusable AI workflows from files you own
What Skillful is, why I built it, and how I use it to manage reusable AI workflows locally.
Read (5 min read)I wanted a lighter runtime like Electrobun, shipping reality chose Electron
Why [Skillful](https://github.com/mastermindzh/skillful) switched from Electrobun back to Electron, and what that taught me about desktop architecture, packaging and runtime seams.
Read (9 min read)The Reality of Distributed Systems: Everything Gets Harder
Distributed systems promise scalability and flexibility, but they come with a cost. Once you cross that boundary, everything gets harder.
Read (7 min read)