Editing Lego Mindstorms (section)

===Fanbase and "Right-to-Hack"===
Despite being aimed towards children, the Robotics Invention System quickly found an audience with adults and hackers of all ages; Lego company surveys conducted a few months after launch determined that seventy percent of Lego Mindstorms Hobbyists were adults. Shortly following the product's launch, adult hobbyists began sharing reverse-engineered versions of the RCX brick's [[Microcode]] and [[Firmware]] on the internet, leading to the development of alternative programming languages for the RCX such as "Not Quite C" (NQC) and alternative operating systems for the brick like lejOS. The Lego Group briefly considered sending cease-and-desist letters to websites sharing the RCX's proprietary code.<ref name=Robertson/>{{rp|183}} However, The Mindstorms team successfully argued that the embrace of the product by the hacking community proved that the product was worth developing. In order to foster this burgeoning community, an official forum was established on the Lego website and a "right to hack" clause was added to end user license agreement of the Lego Mindstorms software. An official software developers kit for the RCX would later be released on the Mindstorms website. A number of products focusing on the RIS were released by adult hobbyists, including how-to books, and unofficial sensors and hardware. A convention for Lego Mindstorms hobbyists, named Mindfest, started in 1999.<ref name=Robertson/>{{rp|181–184}}

Despite strong sales, the Mindstorms development team was neglected by upper management. As a [[Cost reduction|cost-cutting]] measure, the Mindstorms office was shut down in 2001, and team members were laid-off or assigned to other projects.<ref name=GoldenRCX/> The Lego Group continued to produce the Robotics Invention System 2.0, selling around 40,000 units per year without advertising <ref name=Robertson/>{{rp|189}} until the set was discontinued in 2006.<ref>{{cite web
| title = 3804: Robotics Invention System V2.0
| url = https://brickset.com/sets/8527-1/Mindstorms-NXT
| website = Brickset.com
| date = n.d.
| access-date = 23 October 2023}}</ref>