Show HN: Note Cargo, a Markdown text editor saved all data on S3/R2 (no DB)

I tried to build markdown based notepad (similar like Obsidian) but stores all files on S3/R2.

Vanilla PHP, no dependency. Web based No vendor locking (S3), high portability.

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"why not just using Notion or Obsidian?"

- Notion is great but they keep adding features that too overkill, also I don't think its easy to move to other vendor.

- Obsidian is cool, but data saved locally is a security risk (eg. laptop stolen).

- Drive/Dropbox is great, but they can't do hyper-linking like Obsidian does.

So, I tried to solve my own problem to just save all markdown + image on S3/R2 (which super cheap and universal).

What do you think guys?