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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
AntiCat
For removing silk and mask, consider a rotary/engraving tool (with switchable accessories)... like Dremel, but it does not to be that sophisticated and high speed. There are inexpensive ($10), suitable ones available, powered with wall outlet power adaptor or cordless/battery. With the right accessory - just enough cutting/abrasive - it is a bit safer - for both you and the board - than a knife. Btw, lower speed means also less cutting/abrasive: you do not want to harm the cooper track/pad too much...