When comparing Nix vs Bodhi, the Slant community recommends Nix for most people. In the question“What are the best Linux distributions for desktops?” Nix is ranked 75th while Bodhi is ranked 76th. The most important reason people chose Nix is:
Nix is a purely functional package management system. This means that the act of building a package does not have side effects, such as destructively updating or deleting files that may be used by other packages.
Specs
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Pros
Pro No side effects when building packages
Nix is a purely functional package management system. This means that the act of building a package does not have side effects, such as destructively updating or deleting files that may be used by other packages.
Pro Isolated development environments
Nix allows the creation of project-specific shell and build environments which are isolated from the rest of the system. These environments are defined declaratively to ensure reproducibility.
Pro Can replace docker in some places
Pro Can use multiple versions of the same package
Because of the functional approach it takes, Nix makes it easy for systems to use multiple versions of the same package simultaneously, and ensure that updating or removing a package can't break other packages.
Pro The configuration works on "All machines"
No more of the traditional: "it works on my machine". When it says reproducible, this is the real deal.
Pro Low resource consumption
System requirements include 128 MB RAM, 2.5 GB hard disk space, and a 300 MHz processor.
Pro Minimal base system
The philosophy for the distribution is to provide a minimal base system so that users can populate it with the software they want. Thus, by default it only includes software that is essential to most Linux users, including file browsers (EFM), a web browser (Midori) and a terminal emulator (Terminology).
Pro Different profiles to choose on first startup
Bohdi Linux offers a few different profiles to choose from when first booting the OS.
Pro Built in compositing
Bohdi Linux has built in compositing. Users can choose a composited desktop upon first boot by choosing the fancy profile.
Cons
Con Does not work well for services on non-NixOS systems
When using Nix with anything other than NixOS you can run into difficulties with trying to start up services. For example, you can install docker with Nix, but it won't integrate with the host system's systemd leaving you to handcraft awkward workarounds in order to start the background service that docker requires. This seems like a critical flaw when using Nix on anything that is not NixOS, and it's unfortunate because this affects many of the packages many users would be most interested in using Nix to handle.
Con Steep learning curve
Con Cannot handle filetypes that have different semantics across different versions
While the functional approach that Nix takes is great for sandboxing binary artifacts of packages, it seriously lacks any power in handling configuration files or user data. It's difficult to upgrade and downgrade files where semantics and syntax can change between versions. Especially in Debian/Ubuntu it can cause severe problems where the upgrade process blocks and the user needs to resolve the 3-way merge.