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EmojiBox/Market/:nixos-rainbow:

:nixos-rainbow: Slack emoji - free PNG download

Custom Slack emoji

:nixos-rainbow: - nixos rainbow Slack emoji

nixos rainbow

Free PNG, sized for the Slack emoji picker. Add to any workspace in about 30 seconds.

Found in

Added: Nov 20, 2025
Popularity: #54,069/ 80,192
Workspaces: <1%

How to add it

Adding :nixos-rainbow: to your Slack takes about 30 seconds.

Fastest· One click

Install the EmojiBox Chrome extension and push :nixos-rainbow: straight to Slack from this page - no download, no upload, no naming.

Get the extension→

Or do it manually

Click Download PNG above.
In Slack, open the emoji picker and choose Add custom emoji.
Upload the file, name it nixos-rainbow, and you're done.

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Nixos Rainbow Slack Emoji (nixos-rainbow) - free PNG download · EmojiBox