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[Taler] WICMP aftermath and web-based POS terminal

From: Florian Jung
Subject: [Taler] WICMP aftermath and web-based POS terminal
Date: Mon, 2 Jan 2023 01:27:37 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0


the WICMP is over and we sold almost 20% of our food and drinks via GNU Taler! :)

Since I couldn't make the Android POS terminal app work, Timm/Spitfire (in CC, but not subscribed to the list) kindly built a web-based one. It is now open source and can be found at


It's still live, but will go down soon:

Old version (one-click buy without basket): https://sell.tschunk.shop/taler-pos/

New version (two-click buy with basket): https://sell.tschunk.shop/taler-pos2/

Both sites will ask you for a JSON which should hopefully be compatible to the format the Android app uses. Use https://sell.tschunk.shop/bar.json for best results.

(Currently, the access control is purely security-by-obscurity, though.)

Our experience with web-based solutions were positive: Some of the hardware we used at the points of sale were either very old (Android <=5), or not Android at all (laptops or Apple Phones), so they couldn't even run the Cashier app. Using web-based taler-pos for selling, and the bank webui for withdrawing coins worked well on all devices.

(Only the "Captcha" on withdrawal was a bit annoying, but one can easily patch that out, i guess ;)).

Thank you all once again for your kind support to make this happen :).



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