Not a valid gem error

[CRYPTO-GENIK]

Instructions to install as a Gem are unclear

I cannot find a valid gem 'jekyll-theme-antarctica' anywhere

[SdtElectronics]

Ah, yeah. Cause it was never published. I thought I would do that after v0.1 is done but I didn't get the time. Anyway, it can be always setup by cloning (if you want to host it on Github pages, do fork instead) the repository. There's no magic in the file structure and the command jekyll serve should work under the top path right after you cloned it.