Meshnetics serial programmer for Linux

We are using Zigbee modules named ZigBit made by Meshnetics (http://www.meshnetics.com). They can be programmed either via JTAG or using a pre-flashed serial bootloader. The latter waits for a combination of bytes for the first 500ms after booting before it hands over control to the program itself. If the right
startup combination is found, an srec file can be sent to the module.
Sadly, the PC-hosted programmer that sends over flash images to the module was available under Windows only, so we created our own Linux-based version, as we have all tool-chains set up in this free operating system.
The current release is 0.1.1 and attached to this page. Feel free to use, modify & send improvements.