David N8DAH from Kit Projects has kits available that will be of interest to µBITx constructors.
Keyer: https://shop.kit-projects.com/index.php?route=product/product&path=59&product_id=99
Touch Key/er: https://shop.kit-projects.com/index.php?route=product/product&path=59&product_id=98
Both are very small and perfect for QRP travel ops! They both use open source code based on JackYack keyer code
Also, ND6T has given permission for another release of his AGC. This version of the very popular kit add-on for the µBITx includes a few added goodies like an S-meter tap! This version will not require any drilling and should (if all goes as planned) solder right in and sit flat on the ubitx PCB.