The biggest issue is that your corners are lifting from the bed during the print. Fixing this is usually a combination of making sure the bed is clean and adding a brim to increase adhesion. Maybe messing with temperature and cooling fan settings for the first few layers.
Second is things look a bit over extruded. This could just be due to the corner issue though so fix that before any other changes.
The reasoning is that it is not illegal to fake most student ID cards but it is a federal offense to fake or alter government issued ID documents.
That way if it becomes an issue they can just pass it on to the authorities as their problem.
"Invalid" or "unparseable" are more understandable descriptors in normal language. I don't think I ever heard of garbage/junk being used for that in language theory but it may be domain specific usage.
There are a lot of edge case characters around visually indistinguishable names. If that is a concern usernames should use a restricted known character sets instead of trying to block specific characters. You likely should also treat lookalike characters as equivalents when checking for username overlap.
As someone who also has produced code that looks like random characters spewed onto a terminal while using fpdf, I feel this one.
It can still have issues with potential attacks that would redirect your client to a system outside of the VPN. It would prevent MitM but not complete replacement.
Likely you needed to include the intermediate cert chain. Let's encrypt sets that up automatically so it's quite a bit easier to get right.
10.x.x.x is a private range. It won't be your externally visible internet address but it might be your router's WAN address if your upstream ISP is performing a NAT for IPv4 or if you have multiple chained routers in your network. If that is your router's WAN address you likely won't be able to use port forwarding for external access.
You can find your external address by visiting ifconfig.me or from a linux shell running curl https://ifconfig.me
My recommendation would be to start from the other direction instead. Try and get the reverse proxy working with a SSL and a test page then work on making your nextcloud instance visible. You can use a tunneled service from cloudflare or tailscale to avoid the port-forwarding and add a layer of security.
IIRC the PS3 had it's firmware encryption key published not the source code.
There is also SMS passive reading using LEO intercept. Hacked police email accounts are used to gain access to carrier systems where they use "imminent threat" no warrant lookups to pull the SMS in real time.
SMS is a terrible form of 2FA, better than none but not by much.
Your experience may depend on which distro you use and how you install things. If you use a distro with a stable upgrade path such as Debian and stick to system packages there should be almost no issues with upgrades. If you use external installers or install from source you may experience issues depending on how the installer works.
For anything complex these days I'd recommend going with containers that way the application and the OS can be upgraded independently. It also makes producing a working copy of your production system for testing a trivial task.
Business systems from the 80s used to automatically convert everything name related to caps. It made it easier to do string matching which was generally case sensitive in the DB. It also made data entry easier as you just turn capslock on and type.
No so much formal as lazy semi-formal.