checksum license upgrade:

Please enter a valid email address and your current license key.
email address:
current license:

Welcome to corz.org!

Since switching hosts (I hope you are alright, Ed! Wherever you are …) quite a few things seems to be wonky.

Juggling two energetic boys (of very different ages) on Coronavirus lockdown, I'm unlikely to have them all fixed any time soon. Mail me! to prioritise!