About

Ardoise is a Tadorne instrument.

Tadorne designs marine instruments, to be made in small numbered series. Ardoise is one of them, alongside Penon.

Everything published is signed by a single GPG key, anchored in the DNS of tadorne.org:

5420 08E3 53EC A628 B4D6 ACAD 8C03 243A FF69 5BF7