The DSS are fascinating, and not only included extra Biblical texts from the second temple period (e.g. 1 Enoch) which adds so much context to different events in the Bible, but actual older Biblical texts that helped give weight to the other texts too.

I'm actually half way through Josh Peck's "The Lost Prophecies of Qumran : 2025 and the Final Age of Man" book, and I recommend it. It's currently unpacking the DSS Calendar by the Essenes amazingly line up with events from the Bible, but even what is to come.

The people behind that created an online version of the calendar too: https://dsscalendar.org