As I am preparing for the old computer challenge, I am thinking to go solar for the charging of my setup. Which made me think, how about going solar for all my 'outside-work' computer needs. And then I was like, how about I recharge all my device manually, with solar, wind of physical force. So I though about a few options. Option #1: Using the hand trainer to help with strong wrist and forearm. You squeeze that thing a thousand times a day and it help with the muscle in the hands and wrist. Why isn't this a tool to charge your phone too? I could easily see a dynamo/gyro that spins the more you train. Option #2: 2 heavy battery in each hands, as handle for a skipping rope that charges the battery. This would spin quite fast and would definitely be a good way to charge battery. The added weight in the hands are perfect for rope skipping training. Option #3: An umbrella, with a foldable solar panel on top. When you hide from the sun, you gather the power at the same time. If there is no sun, the panel detach a bit from one another and angles a bit, creating a turbine. You can then mount the umbrella into its own stand to generate wind power. When fully charged, the turbine can spin in the other direction to offer a cool breeze. Anyway, just thinking there should be some charging solution that works with the training of the body. Training can be boring, but charging would be even more boring, why not bring both together! It would be perfect for kids too, you can have as much screen time as you can charge! The fun part is that they will come up with the most ingenious (lazy) way to charge their device, activating their engineering brain! On another more serious note. I really like the idea to limit my computer usage to the power I can create myself. It's both a 'permacomputing' solarpunkish challenge, but also a way to reduce my computer usage to a healthy minimum. Anyway, I've ordered a waterproof portable solar charger for my ebook + mech keyboard setup. Next week during the OCC I'll see how long a charge on the ebook will last. The goal is to keep the device offline as much as possible, and then only sync online once all is written. It would be interesting to use something like offpunk to cache all the content I visit too. But I think Lagrange might have some cache that could be used... I'll have to look into that, since gemini/gopher is such a lightweight protocol, having a couple gig of cache would certainly go a long way!