Bikepacking - a viable alternative to racks & panniers

Sorry, don't have a picture, but you can google plenty, for example.

I have the regular handlebar: https://www.apidura.com/product/handlebar-pack-regular/
And regular saddle bag: https://www.apidura.com/product/saddle-pack-regular/

The saddle bag is perfect if you ask me.
The handlebar one not as much.
According to the length of you head tube and amount of spacers you might easily get it to rub on the tire (that's why I lock the buckles over the handlebar, to keep it higher). Laterally you can adjust it significantly, it's roll top both sides, so the width of it adjusts to what you put inside and how much you can compress it. You will have to sacrifice some capacity to save room for the shifters movement.

It's a bag developed for flat MTB bars. If you use it with road drops you only use it to say 40% of its capacity.

Also, according to your cable routing around the handlebar, it might compress/bend slightly your cable arrangement and affect bike performance (extra tension in the shifting/breaking cables)