teensy-loader-cli binary package in Ubuntu Focal riscv64

 See https://www.pjrc.com/teensy/ for an introduction to the Teensy family of
 USB-based microcontroller development systems.
 .
 The teensy loader cli is a command-line alternative to the graphical teensy
 loader which is included with Teensyduino. The cli version is preferred by
 advanced users who want to automate programming, typically from within a
 Makefile or similar.

Source package