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Top 23 C++ operating-system Projects
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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according to wayback machine the domain expired at the end of 2021. Months later it came back with the sneaky ad. Their page at github https://includeos.github.io/ does not have it. It is safe to assume whoever grabbed the domain has no association to the authors.
Project has been dead for many years now btw.
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Project mention: Managarm: Pragmatic microkernel-based OS with asynchronous I/O | news.ycombinator.com | 2024-07-27
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haiku
The Haiku operating system. (Pull requests will be ignored; patches may be sent to https://review.haiku-os.org).
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Project mention: Managarm: Pragmatic microkernel-based OS with asynchronous I/O | news.ycombinator.com | 2024-07-27
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Project mention: Managarm: Pragmatic microkernel-based OS with asynchronous I/O | news.ycombinator.com | 2024-07-27
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Project mention: Show HN: FOSD – Framework of Operating System Development | news.ycombinator.com | 2024-08-22
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Project mention: Managarm: Pragmatic microkernel-based OS with asynchronous I/O | news.ycombinator.com | 2024-07-27
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Project mention: Managarm: Pragmatic microkernel-based OS with asynchronous I/O | news.ycombinator.com | 2024-07-27
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ operating-system discussion
C++ operating-system related posts
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New browser in town
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Learning to Program with Haiku
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Calling All Hackers
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Managarm: Pragmatic microkernel-based OS with asynchronous I/O
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Update outdated male-specific language
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SerenityOS maintainer calls the idea of non-males users a "controversial topic"
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Welcome to Ladybird, a independent web browser
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A note from our sponsor - InfluxDB
www.influxdata.com | 16 May 2025
Index
What are some of the best open-source operating-system projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | serenity | 31,760 |
| 2 | IncludeOS | 5,131 |
| 3 | skiftOS | 2,424 |
| 4 | haiku | 2,010 |
| 5 | managarm | 1,675 |
| 6 | Lemon-OS | 1,266 |
| 7 | WingOS | 772 |
| 8 | distortos | 452 |
| 9 | clarion | 323 |
| 10 | hhuOS | 173 |
| 11 | JsOS | 165 |
| 12 | xyris | 154 |
| 13 | sweb | 124 |
| 14 | FOSD | 106 |
| 15 | pico-os | 96 |
| 16 | MaslOS | 92 |
| 17 | l4re-core | 87 |
| 18 | LensorOS | 87 |
| 19 | BadAppleOS | 59 |
| 20 | GodsEyeView | 55 |
| 21 | MaxOS | 50 |
| 22 | TempleOS-EE | 49 |
| 23 | Macaron | 46 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com