I found this on Reddit /r/mechanicalkeyboards https://www.reddit.com/r/MechanicalKeyboards/comments/33hh8b/smaller_than_planck_30_singularity_layout/
The design is missing the backtick, tilde and pipe (`~|) characters, but I guess you could drop the volume up/dn and mute options and put them there instead.
Download the KLE .json file
Open file in KLE
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