This tool is severely outdated, please do not use it for anything other then unlocking or trying to fix an already bricked device.

[Nik-Kot]

As title says. The tool has not been updated for almost 2 years. This isn't an issue, but a warning.
There have been recent reports of the tool bricking phones when trying to flash stock ROM to a device with locked BL (this is a feature, you can change region of ROM without unlocking). Please do not attempt this using this tool, your device might become irrecoverable.

As for unlocking, there isn't anything inherently unsafe with it, but most likely this won't work. There are some suggestions in PRs #98 #41 #94 #67 #88 and I will be trying to make a fix if I get a locked device I can try this on.