I am trying to ease my way into GUIX by starting with just using it as a package manager, but my effort was stalled early. I'm getting:

$ guix pull Updating channel 'nonguix' from Git repository at 'https://gitlab.com/nonguix/nonguix'… guix pull: error: Git error: the SSL certificate is invalid

This is occurring after adding a couple to channels.scm:

(cons* (channel (name 'nonguix) (url "https://gitlab.com/nonguix/nonguix") (introduction (make-channel-introduction "897c1a470da759236cc11798f4e0a5f7d4d59fbc" (openpgp-fingerprint "2A39 3FFF 68F4 EF7A 3D29 12AF 6F51 20A0 22FB B2D5")))) (channel (name 'flat) (url "https://github.com/flatwhatson/guix-channel.git") (introduction (make-channel-introduction "33f86a4b48205c0dc19d7c036c85393f0766f806" (openpgp-fingerprint "736A C00E 1254 378B A982 7AF6 9DBE 8265 81B6 4490")))) %default-channels) 

I feel like I'm missing something obvious here, but I have seen a few others with this problem. What am I missing?