100% doable and easy. In clients like qBittorrent you can right click on a torrent and select both "Download Sequentially" and "Download first and last pieces". Once it downloads the first and last pieces, you can wait for a bit until maybe the first 5% has downloaded, and you can open the file with a decent video player like VLC, and as long as the download is faster than the play speed, it'll play just fine.

Same here. Bite arden is great, better than Dashlane and it's FOSS.

It's not much. But it's honest work.

I think it should be “message”: instead of “message”, (colon instead of comma)

I like that system info widget. What is it?