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No where to go, but up!
(thelemmy.club)
Share your self-made stuff and half-baked projects here.
Also check out !diy@beehaw.org
There is also a related XMPP chat.
Get some aluminum sulfate (and something to adjust the pH for it) to flocculate those micro-algae.
... or some phosphate/ fertilizer for some extra fun 👀
And just in case society collapses, you can make some quick buck in the meantime selling your selfmade soilent green to the starving masses ☺️✨