The info to know is that frozen vegetable are vitamin-wise more healthy than fresh one. Time to freezing machine is generally well below 10 hours, usually 2 or 3. "Fresh" vegetable can be stored in fridges for days before hitting the shelf.

I ran my own mail servers for years. I switched to mail-in-a-box (MiaB) about 2 years ago and I don't regret it any single day.

Sure, it helps to know mail protocols and implementations inside-out, but... What does it help really? I was a ISP admin and then I had to know it. Now I don't care any more.

But back to what is really important: MiaB is a fully functional and *well* maintained solution that automate its maintenance. If it's not your job and/or you're not dedicating some non trivial resources to just be aware of what's happening in that knowledge space, you'll never be as good as a well maintained solution.

Probably not the *best* but lightweight,sturdy enough for me, cheap and with a great battery life. I never used it more than 6 hours off the wall but I never experienced a dead battery. At start the WiFi was bad and the trackpad nonfunctional but with Ubuntu 16.10 the WiFi is usable and the trackpad working. It's the basic model with the FullHD display.

For the FS format, definitively go for ext4. It shall save you a huge amount of time when fsck, it's easier to undelete from. For a media server usage you don't even need to understand the old delayed sync controversy, it's not relevant. For films, you're certainly right with Matroska. For the rest I wont comment (I use x264 myself).

Just shows once to your (young) nephew who is basically trustworthy how to get the very powerful magnet inside the drive. Switch nephew when he become tired to play with magnets. It worked for me for more than 30 drives so far.

Handbrake burns the subtitle into the film and doesn't allow to easily include several audio languages and subtitles. I'm multilingual and enjoy to see films with friends speaking various languages. The recent versions of OGMrip doesn't set the sound out of sync unless you jump back and forth inside the film.