Observed arrival · 2026-08-29
Mark Fensom, retired railway operator turned home inventor
A personal portfolio of browser puzzles, iPad colouring tools, offline number generators, a weight-training tracker, and a miniature digital Underground railway.
Field notes
The projects are presented as separate, deliberately constrained tools rather than one broad product: puzlr rotates ten puzzle types daily and claims every puzzle has exactly one solution, while Lucky Dip uses a three-stage shuffle and works offline. Tintl is described as containing 1,760 vector colouring pictures across thirteen categories. The portfolio also documents a tabletop Underground model built for operational training, connecting the maker’s software work to his earlier railway career.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue