So not really 100% domestic since it runs on ARM and is built using C, C++, Rust and JavaScript but they are close. I prefer something more open like Linux or more integrated like macOS, but fun for them.

ARM is a design not an implementation.

C and C++ are ISO standards, with multiple implementations.

JavaScript is an ECMA/ISO standard, with multiple implementations.

Rust is sponsored by an international foundation.

Additionally, Harmony OS is its own thing, it has long stop being an Android fork, with ArkTS and Cangjie, as the main way to develop applications for the platform.

https://developer.huawei.com/consumer/en/arkts

https://cangjie-lang.cn/en

By that standard, a computer designed and made in USA that would use ARM and C++ would not be American, because at their initial origins ARM was British and C++ Danish (and inspired by the Norwegian SIMULA 67). Even the C programming language cannot be called American by your methodology, because it includes many features taken from the ALGOL 68 language, which were introduced in it mainly by a Dutch team.

The reality is that computer technology is global. It does not belong to any single country.

If you analyze any piece of hardware or software, it aggregates various elements that have their origins in many countries.

What matters is whether you can design and build a complete system, not from where you might have learned each of the great number of things required for this.

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