hi again,
Sorry for hitting the same topic twice, but this one's actually got something to show for it now.
Posted a couple weeks back about a self-contained Monero POS device - no phone, no backend server to host, an alternative to Monero-Merchant that's just one box. (https://monero.forum/thread/real-monero-pos-device)
Software's done now: fully open source, AGPL-3.0, 76 automated tests covering the payment logic, no spending key anywhere in the system (it only ever holds a view key - it can see payments, it can never move funds). Repo's up: https://github.com/fujimoto44/xmr-pos
What's still missing is the one thing I can't fake: it hasn't touched real hardware yet. That's the whole reason for this post. Same issue as last time - hardware's expensive and hard to get stock of where I am, and customs adds on top of that. Rough breakdown: $45 pi, $80 screen, $2 keypad, $10 Raspberry Pi power supply, $25 printer.
So, to actually finish this, I need about 0.30 XMR in donations. If you'd like to help:
XMR:
86iXtiFKi82e4kmy1nUfXvX643HDLxiT675J1nuMyP76XyTascyW3grEUD54VzGoTrV4h4KESGBhEhHyBacFMdQkQyJor61
If you can't help by donating but happen to have a spare Raspberry Pi, a screen, or a keypad lying around: cloning the repo, wiring up whatever hardware you've got, and opening a GitHub issue to say it ran (or didn't) would help just as much - that's real-hardware testing I genuinely can't do myself right now.
Just two quick notes before you start: I've listed the project's limitations and shortcomings right in the README (see Known Limitations). Also, the default config connects to stagenet instead of mainnet - be sure to switch it if you're doing actual testing.