Israel developed a plugin framework on top of plane's main OS so they can hook up their own legacy systems[1]. Supposedly Lockheed Matrin reluctantly offered a

Israel developed a plugin framework on top of plane's main OS so they can hook up their own legacy systems[1]. Supposedly Lockheed Matrin reluctantly offered a SDK to Israelis. [1] https://en.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightning_II_Israeli_procurement#Changes_from_standard_F-35A https://en.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightning...