At some point I might also hook up the battery charge meter to a public site for slrpnk.net. Currently we are at 88% and charging, but this website does have a failover to grid-power if the battery charge drops below 20%.

That hydrogen is too combustible is largely a myth. The main problem with it is leakage through the hull membrane, but that is a solvable engineering problem.

Zeppelins largely fell out of use due to limited military application and because fuel was basically free back then due to abundant supplies. I think it is important to keep this historic context in mind.

As for electric quadcopters being expensive, yes, but the proposed business is end to end, so not like an airport that needs to be loaded and unloaded quickly with a large amount of cargo. So for the airships it will be rather pick and load individually replacing not only the airplane but also the trucks delivering the cargo to and from the airport.

It will likely need some good charging infrastructure on the ground to recharge these quadcopters, but the spread of electric cars makes this more realistic these days.

They didn’t fail due to technical problems. At least try to do proper research next time.

These “fundamental problems” are not really problems for airships that only rarely touch down and can be loaded and unloaded with electric quadcopters which recently became available in suffient sizes.

Rigid hull airships regularly made transatlantic journeys with tight schedules, so your “gust of wind” problem is evidently wrong, and larger storms also effect airplanes starting and landing resulting in similar delays.

SpaceX is highly successful, but yeah Hyperloop is not the best reference, but I think cargo airships as a business is closer to SpaceX in terms of market fit.

https://www.twz.com/this-alien-looking-airship-design-used-a-propulsion-method-unlike-any-other

It is possible that people get access to your server while it is running via known or unkown software vulnerabilities, but that isn’t really the point… all I am saying is that if you host your server at home, it is unlikely that at-rest disk-encryption does you any good and it certainly doesn’t help to protect against illicit remote access.

What it does “help” is preventing you from remotely accessing your own server if it rebooted for some reason… and many other such footguns that you will experience sooner or later.

No the Nextcloud DB is not excrypted, but neither is your LUKS file system while the computer is running. Anyone getting access to the server while it is running, can access all the data unencrypted. For a server this is the much more likely scenario than for a laptop, which might get stolen while turned off.

At-rest disk encryption is useful for servers in co-location hosting, where a 3rd party might be able to pull a disk from the system, or if you are a large data-center that regularly discards old drives with customer data, and you want to ensure that no 3rd party can access that data from the discarded drives.

I would carefully think about what realistic threat scenario full disk encryptio protects you from.

On a server that runs 24/7 at-rest disk encryption usually helps very little, as it will be nearly always unencrypted. But it comes with significant footguns potentially locking you out of the system and even preventing you from accessing your data. IMHO in most cases and especially for beginners I would advise against it for a home based server.

Nextcloud runs fine via Podman. Stick with Fedora, cockpit and btrfs.

Btrbk is good for snapshots and automated backups.

If the 500gb is a NVMe drive then the database will benefit from the extra r/w speed.

Nginx is great for reverse-proxying. Dehydrated is the no-BS option to generate certs, but Certbot also works.

OVH gives you free dyndns and an email address with every domain you register, good option for self-hosting.

I think this is mostly interesting for repurposing existing fossile fuel powerplants.

Add a relatively small geothermal power-plant on site for baseload demand plus a well sized grid battery and you can continue using a lot of the existing infrastructure of these older powerplants.

Due to security requirements this will not work with nuclear, even when using (largely theoretical) small modular reactors.

I thought about it, but apparently it needs higher water temperatures than what my solar-termal water heater and air-to-water heatpump usually produces, so I scrapped the idea again.

Given that geothermal power plants tend to run for many decades, this would be one of the few good outcomes after the AI bubble pops.

As someone who also recently layed a lot of vinyl planks: Take care of your back, otherwise good luck! 😊

Running an aircon or refrigerator would be the obvious choices, but you could for example also connect an small electrical oven and dry some fruits or mushrooms in it… or get all fancy and bake your own bread.

Yeah, there are definitely a lot of low hanging fruits in that regard.

Lemmy for example would be probably a lot more server resource efficient if it would batch-send federated votes, as currently the constant stream of individual vote activities are really hammering the database.

Hosting a signal proxy is probably not a big deal if you don’t plan to ever travel to countries that have blocked Signal, but I would strongly advise against hosting a Tor exit node as a private individual. Tor is used for criminal activities all the time, and unless you have plausible deniability as an organization (and a good lawyer), it will be blamed on you personally.

That’s what they like you to think yes. But it is only the message content and not the various forms of metadata that is protected by their encryption scheme.

You can install it as a PWA, so that it acts very similar to a normal app. Just open it in a mobile browser and select “install” or “add to homescreen” or so from the menu.