This should be updated when the new main landing page is online soon, but this is the current main home for the legacy client:

https://git.parallelcoin.io/dev/parallelcoin

These are 'AppImage' universal binaries that you can run on

https://github.com/parallelcointeam/parallelcoin/releases

The second one (parallelcoin-qt) is the graphical wallet that you will probably want to use.

We are also hosting it here: https://git.parallelcoin.io/dev/parallelcoin-binaries

Basically, download it for any linux (I made sure it will work for any version released after april 2014 or later), assuming it is 64 bit, right click on the icon and select 'properties' and make it executable, and voila. I'm not sure how to explain that any better than that. Oh, a picture will help I guess:

This won't be visible unless you click on it:

https://i.postimg.cc/jdvmB89J/Screenshot-from-2019-06-20-17-40-47.png

For mining:

Usually you would use the other one (without -qt) for mining, though it is possible to use the -qt version if you manually edit the configuration.

But actually, most people would mine using a pool at this point. It can be mined the same way as you would mine bitcoin or litecoin, and including the same hardware as you would use for either of them, SHA256D or Scrypt.

In the future, after the hardfork, at first there will only be CPU mining and probably in a few months after that there will be an OpenCL and Cuda kernel to use GPUs. I doubt there ever will be an ASIC because I am designing the algorithm so that where a CPU is faster, a GPU is slow, and vice versa, and the complexity of the algorithm will make an ASIC essentially a computer anyway.