A "PDFlet" is a document on the reMarkable which triggers a script and updates the document, similar to a bookmarklet.
I use a systemd path unit and a simple shell script to directly build a PDF in order to achieve this.
weather- displays weather from wttr.in.twitter- grabs latest Tweets.
Simply run install.sh from inside either weather/ or twitter/. Your device will reboot.
A new document will appear on your remarkable. When you close and reopen this document, a script is run to regenerate it.
weatherandtwitterneed internet access- I haven't found a way to refresh a document while it's open, which means you have to close and reopen to reload.
- Weather and Twitter are written in pure bash and busybox tools, which means they are ugly and maybe buggy