could I write an entire operating system in assembly and C++?

• morphiOS

  2 5 3.2 C++

  A lightweight 32-bit operating system written in C++ for the i386 (x86) architecture.

Shameless plug but I wrote a lightweight OS in C++. The code is on GitHub if you're interested: https://github.com/syedtaqi95/morphiOS

• kush-os

  2 14 0.0 C

  the kool useful system helper – a from-scratch hobby OS written in C++20

It’s very much doable; I did exactly this with an OS I worked on last year. This takes advantage of many modern C++20 features, most of which work just fine in a bare metal environment. As others have said, you’ll have to disable runtime features like exceptions and RTTI in your kernel. A lot of it is really hacky, but this was just meant to be a proof of concept project that got a little out of hand :)

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• website

  71 37 8.5 HTML

  The Haiku website. (Pull requests are accepted; please file issues at https://dev.haiku-os.org). (by haiku)

  

Haiku is written in C++!

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