The best alternatives to Open Source Tools Stack! are Feather, btw, and Medusa. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Open Source Tools Stack!?
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Feather is a collection of simply beautiful open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency and readability.
Medusa is an open source headless commerce platform. Use our building blocks and customize your setup in any way you want. Easy to set up with plug-n-play integrations to payments, CMSs, shipping, analytics etc. - Take ownership of your commerce stack
Mapus is an open source tool to explore and annotate collaboratively on a map. You can draw, add markers, lines, areas, find places to go, observe other users, and much more.