I’m not a programmer, but I’d say if you copy large sections of a code, the original author belongs into the list of authors, not into the acknowledgement part, where you e.g. thank your significant other for their support, your collegues for their fruitful discussions or some society for their funding.

The license does not allow removing the original license and purport that the code was created by someone else. It looks as if large parts of the project were copied directly from Spegel without any mention of the original source.

If it’s only due to the branch, i.e. a package or desired version isn’t available in stable but is in testing or unstable, you may try using pinning.

Doesn’t apt (not apt-get), unlike dpkg, perform a dependency resolution before installing a downloaded deb package?

From the energy perspective, you need a certain amount to increase the temperature of the snow form initial temperature to over 0°C, and another amount to overcome the latent heat (heat of transformation) from solid ice to liquid water.
The latter, the heat of transformation from solid to liquid, is quite large and has been used for making ice cream whitout a refrigerator: Melting ice cubes in a large bowl with the help of salt was used as a cooling agent to freeze the ingedients contained in a smaller bowl placed inside the larger one.

Yes, but as it’s the official binary of your VPN provider, you’re going to need to trust them anyways when using their servers.

sudo curl

I’d use curl to download with user permissions and then sudo mv to the desired place.

sudo random binary

The official binary of your vpn provider isn’t exactly “random”. They probably also provide means to check whether the downloaded binary is authentic. Yet, they don’t elaborate on that here.

IDEA instructions

Those manufacturers where you can select either Linux or no OS don’t charge extra for Linux.