QR code generated with tiddlywiki.
https://cdn.fosstodon.org/media_attachments/files/112/338/564/715/402/418/original/5e74b09f253c422e.png
That's cool!
If you want something lighter, you can use the barcode plugin with #TiddlyWiki to generate barcodes right in your browser!
The bar code plugin is already installed on the demo page at TiddlyWiki.com.
There's also the ability to read-in bar codes from your camera. (To be honest, I haven't tried this yet).
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.