I'm a fan of text files. But many times you just want to capture the image and store it. For e.g. a bills/receipts. Secondly, the article doesn't talk about syncing - may be onedrive/dropbox? what are some good solutions here? Third, how do you do this (writing/editing notes) on a mobile phone?
Proper notetaking app, can show images inline (but stores the note and image as a plaintext file and a normal image file, the text file just has a line for what image to show like:
/Notebook/Attachments/Bill.png
/Notebook/Notes/Bill.md
Bill.md contents:
Went to restaurant and got this for the trouble:
![[Bill.png]]
They have a full features mobile app and sell an end to end encrypted sync service for the app. It's as good as it gets, IMO.