After getting 4 flats in 4 days on a bike trip, I had good luck with anti-puncture kevlar tire liner tape.
Ooh never heard of that. That's awesome! As mentioned in the last point in the document, often if you get repeat punctures it's because the causative element is still embedded in the outer tire. Once this happens you learn the real value of fixing a tire is not in the patching, which is a different challenge, but the analysis: 1. Locate the puncture. 2. Match the inner tube back to the rim using the air valve location. 3. Translate the puncture location from the inner tube to the tread. 4. Search like hell for the cause.
Tubeless can be a pain but it is exceedingly good at dealing with the small annoying punctures. Pretty typical to not notice a puncture at all before it seals. Caveats: for some reason pinch flats in the sidewall seal poorly, and the sealant must be kept somewhat fresh.
The one time I had it fail me entirely, it was in New Mexico where the goathead thorns are relentless. I had about a dozen thorns in each tire, and my half dried up sealant was no longer up to the task. Still hard to imagine going back to tubes, even though I carry lightweight TPU tubes as backups.
Make sure you carry tubes with stems of sufficient length. That was my last error. Oof.