"50L bag of nuts"

Oh you're European, so you're likely talking about the english walnut. https://en.wikipedia.org/wiki/Juglans_regia

The harvesting process is very different from the black walnuts that we have in NA. https://en.wikipedia.org/wiki/Juglans_nigra

Your walnuts will be much easier to hull and much easier to shell. Enjoy.

Have you ever harvested walnuts? It sucks to get any sort of quantity put together.

First you have to hull them, this will leave your fingers stained black for weeks even with gloves.

Then you have to dry them for a season, which involves either keeping the squirrels away constantly or a bucket taking up space in your house for an entire season.

And finally you have to shell them, which is not an easy or repeatable process. Doing it at home by hand will lead to a nice powder of shell and nut that you have to separate before you can eat a single walnut.

Forget all that. If someone wants to do that as a job so that I can buy them for 10 dollars/lb bagged in the store then be my guest.

”They kept on insistin’ they wasn’t fightin’ for no slaves, they were fightin’ for their ‘rats.’ It finally dawned on me that what the feller meant was their ‘rights,’ only, the way they talk, it came out ‘rats.’... Then after that I asked this fella what rights he had that we were offendin’, and he said, well, he didn’t know, but he must have some rights he didn’t know nothin’ about. Now, aint that something?”

Because "sterile" exotics often have a seed production rate at >0% in the best scenarios.
Why introduce an invasive species into the environment when there are plenty of natives that will do the trick? Stop being so lax with noxious weed contamination risks.