While I agree leveraging the filesystem is the way to go in order to sort binary data (ebooks, papers, movies, etc), it's not true org-mode is not suitable to organize those.
Since it supports hyperlinks to a wide variety of data, and Emacs is so easy to script, you can definitely do that. For example, org-ref has a lot of functionality implemented to organize academic papers, including the corresponding PDFs.
In fact, a personal org-mode wiki could easily have one or more files devoted to personal pictures, books, papers and hyperlinks to those plus whatever metadata. There are some examples around if you google for that.
I do keep my personal wiki very close to a zettelkasten, but implemented in org-mode. Nothing special. Very simple. Small files that mimic cards, plus hyperlinks. I search using ripgrep, and I version control using git. A key feature is that I keep my task list and calendar inside my wiki too, but not version controlled.
Since it supports hyperlinks to a wide variety of data, and Emacs is so easy to script, you can definitely do that. For example, org-ref has a lot of functionality implemented to organize academic papers, including the corresponding PDFs.
In fact, a personal org-mode wiki could easily have one or more files devoted to personal pictures, books, papers and hyperlinks to those plus whatever metadata. There are some examples around if you google for that.
I do keep my personal wiki very close to a zettelkasten, but implemented in org-mode. Nothing special. Very simple. Small files that mimic cards, plus hyperlinks. I search using ripgrep, and I version control using git. A key feature is that I keep my task list and calendar inside my wiki too, but not version controlled.