I found these useful videos at YouTube.
Please look them over.
There is lots of nonsense online, however this is good comrmation.
Each of these are by people who know what they are doing, and like to share with others easier ways to do things.
The first video is Jason Klass, a personable young man who finds ingenious ways to make backpacking more sensible, like being able to wash up.
Hands Free Camp Sink
Here Jason Klass is explaining his more lightweight gravity water filtration system.
Ultralight Gravity Pro Water Filter
Here is a video presentation of Freezer Bag Cooking.
Freezer Bag Cooking
This video shows a somewhat heavier version of the standard of alcohol stove cooking system, today, because the cooking pot is stainless steel.
I hope you enjoyed these videos. I have selected More Backpacking Videos.
I have also selected Backpacking Food Videos about how to pack the food you need.