koreader-highlight-to-markdown
quick 'n dirty script to convert koreader highlights to a markdown file.
to compile/install:
$ cargo build --release
$ cp target/release/koreader-highlight-to-markdown ~/.local/bin/ # adjust to taste
to use:
$ koreader-highlight-to-markdown /path/to/book.sdr/metadata.epub.lua > /path/to/output.md
this is super janky and i've only really tested it on my exact setup. should be easy to edit, though. good luck!