Boy that was fast! Well done, thanks.
Wish you the best for your project, glad others like it as well =)
As far as UX goes another little thing I would suggest is making the flexbox columns grow instead of shrinking so that they properly utilize the entire width of the screen and as a bonus spice you could contemplate about dynamic column width where the primary column (first or possibly hovered one) is proportionate to the rest of the columns in tandem with the golden ratio. I found golden ratio is indeed a really pleasing analogy from vim splits to tiling windows widths or practically everything.
If not for making the columns disproportionate you should definitely make them utilize more of the real estate as they kind of hinder usability and UX when shrieked.
If enough people ask to open source that is possible.
Just added option to disable Instagram and Twitter from ▼ menu on the right of the search input. Let me know if that works good for you!