You can run it forever as long as you are fine with the Please Activate text in the corner and having personalization restricted.

oh, i wasn't aware of that. good to know

Is it legal?

For this content, I may have to do this work, but I just want to point out how ridiculous it is that the ,,solution,, to accessing my own content on my own device is to install an entire un-free operating system from a different vendor using grey area licensing, then install another un-free application, then pray that it works, which still does not seem that likely to me, to be honest, having done that dance before only to be given the ,,choice,, to erase the device memory or cancel.