What are open source alternatives to Nelko app for PM220?

F-Droid's BT Thermal Printer, RawBTPrint via Termux, or GitHub's android-escpos. All ESC/POS compliant, no spying.

Does PM220 work with third-party thermal paper?

Yes, with apps tweaking density (e.g., RawBTPrint). Skip NFC hacks.

Termux + CLI tools, or web-based ESC/POS generators shared via BT. Word count: ~950.

📦 Open Source Projects

Proprietary thermal printer apps are a privacy disaster. Here's how open source pulls you out of the data-mining pit.

theAIcatchup Apr 08, 2026 3 min read

Ditch Play Store apps—F-Droid and GitHub have spyware-free thermal printer alternatives. 𝕏
PM220 works great with generic paper using ESC/POS open source tools—no NFC needed. 𝕏
This is the '90s printer wars redux; open source will crush OEM lock-in. 𝕏

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Community-driven. Code-first.

#PM220 printer #open source android #printer privacy #thermal printer apps

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Originally reported by Reddit r/opensource