I’ll agree that it looks like watering issues. It could be inconsistent or overwatering leading to cell damage in the leaves, though I wouldn’t rule out root rot or pests since watering issues can invite both. If you are really concerned, you could repot with fresh potting soil and inspect the roots for damage. Wipe the top and bottom of the leaves with a damp paper towel and look for pests just in case.

There’s a weird bug where you can get four workers per shaft. The ‘hire worker’ button at the end of the shaft disappears after you hire your third worker, but if you click where the button was, you will get a fourth worker for free.

I think you can find it for sale on AliExpress by searching for ‘Topton N100 NAS motherboard.’

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