gmod 12 ssr safe and good?

i want to get those: https://www.mediafire.com/file/2uz7fqw4f86luq9/Garry%2527s_Mod_12%257BSSR%257D.rar/file https://www.mediafire.com/file/w5wf9crk8jakuj3/ToyboxPack.zip/file and https://github.com/LeadKiller/ssr-patch/tree/master , is this safe and all running up?