From 2017-2018, Sudomemo couldn't be accessed via console due to Nintendo server changes. Community developers found a workaround - a "hacked" flipnote that modified DSi memory to point at Sudomemo. This was the first flipnote uploaded to the website in more than a year.
Illustrations
If you're wondering what the audio in this flipnote is, it's an image from the International Space Station encoded via SSTV. To decode it, download an SSTV Decoder app on your smartphone and hold it close to your speaker!