Flows with dual plys.. tubeless if you can.
Brakes bled and spare pads x2 sets
Bigger rotors.
Forks, lower refresh.
Shock new lube and seal clean, inspect bushes for wear and replace if necessary.
Torque all your bolts up even a bit of threadlock on any suspect ones.
My best spare advice is a spare pair of gloves of a different brand, just in case you get that blister off a seam, you’ll thank me for this one.
Spare hanger, chain, I usually take a small tool kit so I’m not reliant on the chalet “tool kit” ….. oh and don’t forget some decent pads for your knees and elbows.
That’s all, enjoy the Alps mate can’t wait to get back out there too.