mining and cave exploration are probably my favorite part of playing minecraft [: really enjoyed the explanation of your minecart speed being because of a pulley system, very neat!
I love how much effort goes into this videos. All these small gestures, looks and your laughs make it feels more.. realstic.. and comfy, if this makes any sense ❤
I recently changed my mineshaft entrance and brought it closer to my Base. Really love it but hadn't thought of decorating the actual inside of it so thanks for that idea!
There's really no use for diamonds, except trim. You can create an artificial need by not using mending. If you don't have that you need them for repairs and new gear (obviously don't use villagers to trade for diamond gear or tools). It will make you treasure your gear (and diamonds) more. Going further you could stop using librarians for books and rely on the enchanting table only. Sure it is more grinding this way, but in other ways it is more satisfactory. You could also make small graves for broken tools that can't be repaired any more.