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Added comments to flake

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KawaiiPunk
2026-05-27 22:49:43 +01:00
parent a6c54b10a6
commit 46b66d8508
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flake.nix
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@ -1,24 +1,45 @@
{ {
# Human-readable description of what this flake produces
description = "Minimal NixOS Docker Swarm server"; description = "Minimal NixOS Docker Swarm server";
# Inputs — external dependencies that this flake depends on
# Each input is fetched and locked in flake.lock for reproducibility
inputs = { inputs = {
# The NixOS package collection, pinned to the 25.05 release branch
# This is the source of all packages and NixOS modules used in configuration.nix
nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05"; nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
}; };
# Outputs — what this flake produces (NixOS configs, formatter, etc.)
# self = this flake's source tree, nixpkgs = the input defined above
# @inputs captures all inputs for passing to modules via specialArgs
outputs = { self, nixpkgs, ... }@inputs: { outputs = { self, nixpkgs, ... }@inputs: {
# NixOS system configuration named "server"
# Referenced with --flake .#server in nixos-rebuild commands
nixosConfigurations.server = nixpkgs.lib.nixosSystem { nixosConfigurations.server = nixpkgs.lib.nixosSystem {
# Target architecture — change to aarch64-linux for ARM servers
system = "x86_64-linux"; system = "x86_64-linux";
# Pass all flake inputs into modules so they can access them via `inputs` arg
specialArgs = { inherit inputs; }; specialArgs = { inherit inputs; };
# List of NixOS module files that make up the system configuration
modules = [ modules = [
# Main system configuration (packages, services, firewall, etc.)
./configuration.nix ./configuration.nix
# Inline module for flake-specific Nix settings
{ {
# Enable experimental Nix features required for flakes and nix command
nix.settings.experimental-features = [ "nix-command" "flakes" ]; nix.settings.experimental-features = [ "nix-command" "flakes" ];
# Register this flake's nixpkgs input as the system-wide nixpkgs registry
# This lets you run `nix run nixpkgs#htop` without needing channels
nix.registry.nixpkgs.flake = nixpkgs; nix.registry.nixpkgs.flake = nixpkgs;
# Point legacy Nix tools (nix-build, nix-shell) at this flake's nixpkgs
# Eliminates the need for /nix/var/nix/profiles/per-user/root/channels
nix.nixPath = [ "nixpkgs=flake:nixpkgs" ]; nix.nixPath = [ "nixpkgs=flake:nixpkgs" ];
} }
]; ];
}; };
# Formatter for `nix fmt` — auto-formats .nix files using the official RFC 166 style
formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.nixfmt-rfc-style; formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.nixfmt-rfc-style;
}; };
} }