Major improvements to downloading over last version (no longer freezes the UI)
I dont have a pinecil v1 (the only iron currently supported), the downloading and checking of versions should work fine though and flashing should work in theory please let me know if you test it out.
You will need dfu-util installed
To run just download this file, set it to executable with
chmod +x ./pineflash_linux_x86
Then run it with
./pineflash_linux_x86