Blog
How the thing is built, and why
Notes from building dispatch software for British taxi firms. What we decided, what we got wrong, and what we will not claim until it is true.
AllocationFairness3 min3 September 2026
Why we tell a driver why the job was not theirs
A rule nobody can check is a rule nobody believes. So ours is a threshold, not a weight, and the driver can read it back.
ReliabilityMobile2 min27 August 2026
A tap in a tunnel
Money-carrying taps wait. They do not vanish. That is three apps, one rule, and one bug we only found by asking who owns a frame.