This contribution cannot be rated as a development contribution, if you think this repository is useful in educating a certain niche of computer users, you could make your case with the tutorials category, however this tool at the moment is spoken of in too many technical terms, you need to be more explicit.

What is lgt ?
What is dd ?
Why is there a gui needed for this at all ?

I would expect you to use different self-explanatory words for simplicity or dedicate a section of your article to explain them.