this post was submitted on 28 Feb 2026
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So a tuya dev account can make them local, this is the piece I was missing. Now I want to get one just to try it out.
Yes, with the caveat that you need to be 100% sure they are cut off from outside when you get the keys. Whatever device is handling your connection needs to have the features to be able to do that, but often ISP provided kit will not.
The most recommended way is to isolate them on their own VLAN. I have few enough not to bother, and just give them static DHCP reservations from a block of addresses that are disallowed outside access. This has worked fine for me for over a year.
If they get any opportunity to phone home though, the local key may change abruptly and you'll have to go through the process again.
Flashing alternative firmware is always the best solution, but it's the most technical and sometimes not possible without physically ruining the device. Or it just might not have a supported chip.
Local Tuya fills that gap nicely. Just need the keys. A dev account is free and renewable at no cost. You can also use older versions of the Tuya/Smartlife app that expose the info. Some have had success that way with an Android VM like Bluestacks.