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Operating Systems · head to head

Arch Linux vs Nebula

Arch Linux logo

Arch Linux

Operating Systems

Rolling-release Linux distribution you assemble yourself

From
Free
Rated
-
Full reviewWebsite
Nebula logo

Nebula

Networking

Certificate based overlay network from Slack, with identity and firewall rules carried in the certificate

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arch Linux installation and maintenance assume real Linux knowledge; there is no hand-holding by design; Nebula the open source project has no user interface, no enrolment workflow and no revocation service, so certificate issuing, distribution and expiry become scripts you write and then have to keep working.
  • They diverge on capability: Arch Linux covers Rolling release, Nebula covers Certificate carried identity.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Arch Linux and Nebula actually diverge.

Attributes where Arch Linux and Nebula differ
AttributeArch LinuxNebula
PlatformsLinux, DesktopLinux, macOS, Windows, iOS, Android, FreeBSD
CategoryOperating SystemsNetworking

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Arch Linux

  • Rolling release
  • Minimal base
  • Pacman and the AUR
  • The Arch Wiki

Only in Nebula

  • Certificate carried identity
  • Group based host firewall
  • Lighthouse discovery
  • Noise protocol encryption
  • Unsafe routes
  • Managed option

What people use each for

The jobs each tool is most often brought in to do.

Arch Linux

  • Developers who want current toolchain versions without backportingnot Nebula
  • Systems where every installed package should be a deliberate choicenot Nebula
  • Learning how a Linux system actually fits togethernot Nebula

Nebula

  • Flattening a network across several clouds and datacentres without VPC peering or route tablesnot Arch Linux
  • Very large fleets where a central policy service on the connection path is unacceptablenot Arch Linux
  • Environments that already run an internal certificate authority and want the network to use itnot Arch Linux
  • Replacing per host iptables rules with policy written against roles that follow the hostnot Arch Linux

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Arch Linux

  • Installation and maintenance assume real Linux knowledge; there is no hand-holding by design
  • Rolling releases break: an update can require manual intervention, and reading the news before updating is genuinely expected
  • Unsuitable for machines that must simply keep working without attention
  • AUR packages are user-submitted and carry no security review

Nebula

  • The open source project has no user interface, no enrolment workflow and no revocation service, so certificate issuing, distribution and expiry become scripts you write and then have to keep working.
  • Revoking a compromised host means distributing a blocklist entry to every other host and reloading them, which is a fleet wide operation rather than a click, and easy to get wrong under pressure.
  • Changing a host group membership means reissuing and redeploying its certificate, so policy changes are a deployment rather than a configuration edit.
  • There is no identity provider integration or single sign on in the open source version, so it maps well to servers and badly to a fleet of user laptops.
  • NAT traversal is best effort and hosts behind symmetric NAT need a relay configured deliberately, so connectivity failures show up as intermittent rather than immediate and are awkward to diagnose.

Pricing, plan by plan

Arch Linux

Free
  • Arch LinuxFree
    • Full operating system
    • All updates
    • Community support

Nebula

Free
  • NebulaFree
    • Full functionality under the MIT licence
    • No host limit
    • You operate the certificate authority and lighthouses
  • Defined Networking$undefined/month
    • Hosted control plane and enrolment
    • Managed certificate lifecycle and revocation
    • Policy and DNS interface

Which should you pick?

Choose Arch Linux if

  • You need rolling release.
  • You want to start without paying.
  • You work on Linux, Desktop.
  • You also want minimal base.
Arch Linux review

Choose Nebula if

  • You need certificate carried identity.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, iOS, Android, FreeBSD.
  • You also want group based host firewall.
Nebula review

Questions people ask

Is Arch Linux or Nebula better?
Neither clearly leads. Arch Linux starts at Free and Nebula at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arch Linux or Nebula?
Arch Linux starts at Free and Nebula at Free.
Does Arch Linux or Nebula run on more platforms?
Arch Linux runs on Linux, Desktop. Nebula runs on Linux, macOS, Windows, iOS, Android, FreeBSD.
Can I use Arch Linux for free?
Both have a free tier, so you can try either at no cost before committing.
What is Arch Linux best used for?
Arch Linux is most often used for developers who want current toolchain versions without backporting, systems where every installed package should be a deliberate choice, learning how a linux system actually fits together. Of those, developers who want current toolchain versions without backporting and systems where every installed package should be a deliberate choice are not what Nebula is typically brought in for.
What can Arch Linux do that Nebula cannot?
Arch Linux covers Rolling release, Minimal base, Pacman and the AUR, The Arch Wiki. Nebula covers Certificate carried identity, Group based host firewall, Lighthouse discovery, Noise protocol encryption.

Answered from the vendors’ own pages

Arch Linux: Is Arch Linux free?

Yes, entirely free and open source.

Nebula: Does it use WireGuard?

No. Nebula predates the common WireGuard mesh tools and uses the Noise protocol framework with its own certificate format.

Arch Linux: Is Arch good for beginners?

Not as a first Linux system. It assumes you will read documentation and maintain the system yourself, which is the trade it makes deliberately.

Nebula: Can I run it without Defined Networking?

Yes, entirely. Defined Networking sells the control plane conveniences, not the network itself.

Arch Linux: What is the AUR?

The Arch User Repository, a very large collection of user-submitted build scripts. It is why almost anything is installable on Arch, and it carries no security review.

Nebula: How do I revoke a host?

Add its certificate fingerprint to the blocklist in the configuration of the other hosts and reload them. There is no online revocation check.

Nebula: Is it a good fit for laptops?

Less so than the identity provider based tools. There is no single sign on, so every laptop needs a certificate issued and renewed by whatever process you build.

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