3.7.12: sam is fast on the board

sums like sam 10+10 now answer on the pi and never leave it
the pi remembers the relay (memory + JT/RELAY.TXT) and stops rediscovering every question
short replies, 30s limit, and a timing line so the next board pass shows where the time goes
relay.py untouched

Boot it

The release above includes joshuatree-3.7.12.iso, a bootable disk image. Write it to a USB stick to boot on real hardware:

macOS:

diskutil list                    # find the disk (e.g. disk2)
sudo dd if=joshuatree-3.7.12.iso of=/dev/rdiskN bs=4m

Linux:

lsblk                            # find the device (e.g. sdb)
sudo dd if=joshuatree-3.7.12.iso of=/dev/sdX bs=4M status=progress conv=fsync

This will erase the stick. Double-check the device path first. Boot the machine from the USB stick (F12/F10/Esc/Del at power-on for most PCs) to start the kernel.

The ISO is proven to boot in QEMU (CD-ROM and USB-style raw disk) via the CI regression suite. Real hardware testing is ongoing.