The official NIIMBOT app requires an account, sends data to cloud servers, and offers limited automation. By contrast, the open-source community has achieved remarkable feats:
Quick, simple printing from Inkscape or other image-based design tools. Technical Overview: How It Works
Inside newer models, RFID tags in the label rolls automatically communicate the label dimensions to the printer, which can then be read by the software. 3. Bitmap Transformation
Pair your printer via Bluetooth or connect via USB.
dhndlt/niimpy (most starred)
While most common models are supported, specific, newer, or rarely used models might not work immediately. How to Get Started