Something I've been working on recently is collecting old and unused laptops from various people I know. Sometimes they're shitty Chromebooks that can barely be used but sometimes they're still perfectly good and recent laptops and people just got bored of them and decided to upgrade for whatever reason. I then put Linux on these laptops (even the shitty chromebooks) and distribute them to people at my college who need one.
With the date that Microsoft is stopping support for windows 10 approaching quickly, now's a great time to prevent e-waste by upgrading to Linux or collecting people's previous laptops as they upgrade. You can also get distributions that run better than windows on low-end hardware. Even if you don't know someone who needs a laptop, you can always do something like host a Minecraft server to make use of it.
Also, you can do this to phones too. There are plenty of custom ROMs you can load on Android phones to squeeze more life out of them. Let me know if you want recommendations.
Anyway, I hope that this can inspire more people to try and repurpose electronics to prevent them from becoming e-waste.
I'm all for it, though does anybody know a good place to find these unwanted machines?
Corporations and universities often have ewaste bins but getting access will depend on your circumstances. I find them there, clean them up, and pass them to a local refugee resettlement charity.
Your local recycling center may be accepting volunteers - I've been working with a guy who volunteers at our recycling center and he's been working on setting up a reuse option for all the working laptops that come through. Currently their policy is that all computers must be securely destroyed to protect peoples' information but if he can catch them and get permission to wipe the drives and give them away then he's allowed to do so. He also saves hundreds of TVs and monitors per year - he could do more, tons still get thrown out, but they have some tight space limitations at the center and have already been giving him as much space for storage and organization as they can.
Also ask around friends and family - in my experience lots of folks keep a couple old machines they no longer need because they don't want to throw them out (or pay extra to throw them out) and once folks know you as the old computer guy you might be surprised at how many people message you to be like 'you want this?' before they throw something out.
And if that doesn't work, there's always free groups like Buy Nothing and Everything is Free online, usually local to your town or city.