This is also the first time I hear someone that uses signet. I tried to find out what benefits it offers compared with testnet and came across
this bitcoin.wiki piece. It mentions that the network is centralized but more reliable. It offers users ways to try out double spend attacks. One of its advantages seems to be less block reorgs and more frequently mined blocks compared to the testnet environment.
@emesik Check the wiki article I linked to above. It says:
There is a command line tool you can use to get coins directly to your instance of Signet, assuming you are on the default network. You can also use the faucet online with an address of yours
Using the command line tool
The tool is in contrib/signet and is called getcoins.sh. You can optionally provide a path to bitcoin-cli using --cmd=[path] and a compatible faucet using --faucet=[url] followed by any number of arguments to bitcoin-cli. The script attempts to autodetect these if left out.
$ cd ../contrib/signet
$ ./getcoins.sh -datadir=../../src/signet
Payment of 10.00000000 BTC sent with txid c0bfa...
https://en.bitcoin.it/wiki/Signet
Edit: Didn't see that nc50lc already linked to the same wiki site.