This is just so awesome! LEGO officially released Micropython image that can run on the EV3.
For the uninitialized
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LEGO mindstorms is LEGO’s robotics focused kit. Think LEGO technic blocks + a programmable microcontroller and assorted selection of motors and sensors. 
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The EV3 'Brick' runs a visual programming interface built on Labview(?). It’s nice for kids to get started with but a PITA as you need a windows machine. 
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As your projects grow, the visual programming doesn’t really scale… It’s been possible to run other OSes/programming platforms for sometime thanks to the LEGO community 
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However, this is big news since - 
It’s first party 
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It’ll probably be supported for long. 
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And I really hope it’s open source as it’ll be fun to hack into the guts - and will also ensure that it continues to live for long even if LEGO drops the ball. 
 
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Extra kudos to LEGO for also releasing a Visual studio Code plugin with project templates, file sync and other functionality. 
I haven’t yet actually dug into this - so now you know what I’ll be up to next weekend!