Hacker ApprovedDepartments

Genode OS

Hacker Approved

Shares rank 37 of 87 operating systems by recommenders

Recommended as a free, long-running capability-based microkernel OS framework for building secure special-purpose systems. Caveat: not yet a daily driver for most.

Recommended as a free, long-running capability-based microkernel OS framework for building secure special-purpose systems. Caveat: not yet a daily driver for most.

15 people gave an opinion

recommend it
14
criticize it
1
approval share
93%
Each figure is one person. RecommendsCriticizes

Recommended in 12 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. November 2026: not recommended (month in progress)

Why it carries the badge

  • 14 people recommend itNeeds 10 or more, met.
  • 14 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 12 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Interesting microkernel alternative to other OSes

    “appears to be very convenient if you are looking into a way to run microkernels for general purpose computing”

    Comment from 28 Oct 2026 in “Code-execution flaw in UEFI firmware threatens most servers on planet Earth”

    “The microkernel-based systems (LionsOS, Genode and so on) already have sane interfaces.”

    Comment from 20 May 2026 in “Ask HN: Are advances in AI going to push Linux to a micro-kernel?”

    “I find the latter to be a most interesting alternative to things like QNX/BeOS/Haiku”

    Comment from 24 Aug 2026 in “NetBSD and my life (2005)”
  • Capability-based sandboxing and security

    “uses a robust capabilities system to sandbox basically everything”

    Comment from 2 Oct 2026 in “Several vulnerabilities have been discovered in the Linux kernel”

    “Capability based, and used/maintained commercially”

    Comment from 18 May 2026 in “The foundations of a provably secure operating system (PSOS) (1979) [pdf]”

    “which are built on better principles”

    Comment from 8 Mar 2026 in “The Linux Kernel Will Soon Be MIT-Licensed and Copyleft Will Be Dead”
  • Long-running, actively maintained project

    “An active, long-running project, more than 20 years now, Genode is amazing outright.”

    Comment from 1 Feb 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

    “Capability based, and used/maintained commercially”

    Comment from 18 May 2026 in “The foundations of a provably secure operating system (PSOS) (1979) [pdf]”
  • Runs on the seL4 kernel

    “an independent OS construction kit that can also use the seL4 kernel”

    Comment from 9 Nov 2025 in “Ironclad – formally verified, real-time capable, Unix-like OS kernel”

    “I’m a huge fan of Genode, another OS that runs on SeL4.”

    Comment from 20 Nov 2025 in “The Lions Operating System”

What people warn about

Each mark is one comment

  • Not yet a daily driver

    “like Genode, this approach yields something that is interesting, but can't be a daily driver for me”

    Comment from 21 Nov 2025 in “The Lions Operating System”

    “remains a collection of ingredients instead of a daily driver”

    Comment from 4 Dec 2025 in “Programming peaked”
  • VMs carry noticeable performance cost

    “It’s capable of this today. Be aware that VMs do have a noticeable performance impact”

    Comment from 31 Jan 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

Other operating systems people recommend

The four most recommended other operating systems, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Genode OS compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Windows1,2873,58226%1310 yrs192 owners—
macOS1,0411,92835%1211 yrs183 owners—
Linux74527773%1219 yrs116 ownersApproved
FreeBSD3359478%1220 yrs69 ownersApproved
Genode OSThis page14193%12—Approved
See all 87 operating systems, ranked

What people said

25 of the 29 comments that mention it, newest first. Each links to the original comment.

“appears to be very convenient if you are looking into a way to run microkernels for general purpose computing”

RecommendsComment from 28 Oct 2026 in “Code-execution flaw in UEFI firmware threatens most servers on planet Earth”

“GenodeOS should be mentioned for application-specific systems”

RecommendsComment from 11 Oct 2026 in “Unikernels were hard. key word: were”

“uses a robust capabilities system to sandbox basically everything”

RecommendsComment from 2 Oct 2026 in “Several vulnerabilities have been discovered in the Linux kernel”

“Throwing away old software is not a requirement, as demonstrated very successfully by Genode and its SculptOS.”

RecommendsComment from 8 Sep 2026 in “We have a year to fix security everywhere”

“I find the latter to be a most interesting alternative to things like QNX/BeOS/Haiku”

RecommendsComment from 24 Aug 2026 in “NetBSD and my life (2005)”

“interesting alternatives with good momentum (Redox and Genode in particular)”

RecommendsComment from 26 Jul 2026 in “GNU Hurd gets 9pfs, OpenNTPD, dynamic /dev/ entries, and more”

“I think Genode might become a widely used OS if they can pull it off.”

RecommendsComment from 24 Jul 2026 in “Andrew Kelley: Don't Take the Black Pill”

“A few looks into Genode for technical inspiration wouldn't be wrong”

RecommendsComment from 23 Jul 2026 in “July 23 1985, Commodore introduced its Amiga 1000: 10 years ahead of its time”

“definitely a very interesting project. inspiring”

RecommendsComment from 22 Jun 2026 in “NSA director: 'Mythos "broke into almost all of our classified systems in hours"”

“The microkernel-based systems (LionsOS, Genode and so on) already have sane interfaces.”

RecommendsComment from 20 May 2026 in “Ask HN: Are advances in AI going to push Linux to a micro-kernel?”

“Capability based, and used/maintained commercially”

RecommendsComment from 18 May 2026 in “The foundations of a provably secure operating system (PSOS) (1979) [pdf]”

“I think Genode is the best news in a decade”

RecommendsComment from 7 May 2026 in “Mythos is the best cybersecurity news we've ever had”

“This one looks more polished.”

RecommendsComment from 26 Apr 2026 in “Math Is Hard”

“Last I heard, it was getting pretty close to being usable as a daily driver.”

RecommendsComment from 25 Mar 2026 in “VitruvianOS – Desktop Linux Inspired by the BeOS”

“which are built on better principles”

RecommendsComment from 8 Mar 2026 in “The Linux Kernel Will Soon Be MIT-Licensed and Copyleft Will Be Dead”

“An active, long-running project, more than 20 years now, Genode is amazing outright.”

RecommendsComment from 1 Feb 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

“It runs perfectly on refurbished Lenovo M910q tinies”

RecommendsComment from 1 Feb 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

“Since Genode is an OS framework, let some agents simplify your daily grind.”

RecommendsComment from 1 Feb 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

“It’s capable of this today. Be aware that VMs do have a noticeable performance impact”

MixedComment from 31 Jan 2026 in “Genode OS is a tool kit for building highly secure special-purpose OS”

“Reads all very impressive and sexy”

RecommendsComment from 16 Dec 2025 in “Former CIA spy: agency's tools can takeover your phone, TV, and even your car”

“Compartmented microkernel operating systems like Genode do it better imo.”

RecommendsComment from 14 Dec 2025 in “Linux Sandboxes and Fil-C”

“remains a collection of ingredients instead of a daily driver”

CriticizesComment from 4 Dec 2025 in “Programming peaked”

“like Genode, this approach yields something that is interesting, but can't be a daily driver for me”

MixedComment from 21 Nov 2025 in “The Lions Operating System”

“I’m a huge fan of Genode, another OS that runs on SeL4.”

RecommendsComment from 20 Nov 2025 in “The Lions Operating System”

“an independent OS construction kit that can also use the seL4 kernel”

RecommendsComment from 9 Nov 2025 in “Ironclad – formally verified, real-time capable, Unix-like OS kernel”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.