These battery + solar controller + inverter all-in-one things are very overpriced. You can DIY one for 1/4th of the price, with better components, and learn something along the way. I will say the software/apps they come with can be nice.
So I've been looking into DIY my own "small system" on a spot that is oriented perfectly. Problem is I can only get like 2KW worth of panels. Too small of a job for an installer but even more perfectly suited for a DIY project.
I know reddit is a dicey topic these days but found the r/DIYSolar to be a useful sub to ask questions and get great answers and/or clarification as to where to look for answers.
One local person spent thousands of dollars only to find that out. The electrician and province should be sued by the homeowner for lack of info and lost money.
But you'd still need to run a line from the shed to the house anyway to distribute the power. Minimum three feet deep the correct gauge and encased in the appropriate conduit sent to a subpanel then the main panel.
That's a lot of time work and effort.