As @fanoush says - you can lock down the device in a few ways, but I'd suggest ensuring minification is turned on for production as not only will the code run a bit quicker, but the minified version of it will be much harder for anyone to do anything with even if they can get it off.
You could also run your code through a third party obfuscator first if you really want.
Thank you so much. I really consider Espruino as a means to develop something big and even commercial use of the resulting products is possible. So I would like to understand whether it is possible to implement the security of your code inside the device. Since the code inside is an executable script, it can be read and downloaded. After learning all about him. I would like to have protection tools.
do you think my idea is strange?
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