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doc(nix): prefer packages output

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overlays can cause issues we don't run into upstream, especially when
used on stable channels for example. preferring the pure `packages`
output also encourages the use of our binary cache by users, who
probably don't like building the launcher all too much

Signed-off-by: seth <getchoo@tuta.io>
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seth 2024-08-20 03:41:53 -04:00
parent e29ea4efb0
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136
nix/README.md
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@ -28,9 +28,9 @@ Example (NixOS):
}
```
### Using the overlay
### Installing the package directly
After adding `github:PrismLauncher/PrismLauncher` to your flake inputs, you can add the `default` overlay to your nixpkgs instance.
After adding `github:PrismLauncher/PrismLauncher` to your flake inputs, you can access the flake's `packages` output.
Example:
@ -41,8 +41,58 @@ Example:
prismlauncher = {
url = "github:PrismLauncher/PrismLauncher";
# Optional: Override the nixpkgs input of prismlauncher to use the same revision as the rest of your flake
# Note that overriding any input of prismlauncher may break reproducibility
# Note that this may break the reproducibility mentioned above, and you might not be able to access the binary cache
#
# inputs.nixpkgs.follows = "nixpkgs";
# This is not required for Flakes
inputs.flake-compat.follows = "";
};
};
outputs =
{ nixpkgs, prismlauncher, ... }:
{
nixosConfigurations.foo = nixpkgs.lib.nixosSystem {
modules = [
./configuration.nix
(
{ pkgs, ... }:
{
environment.systemPackages = [ prismlauncher.packages.${pkgs.system}.prismlauncher ];
}
)
];
};
};
}
```
### Using the overlay
Alternatively, if you don't want to use our `packages` output, you can add our overlay to your nixpkgs instance.
This will ensure Prism is built with your system's packages.
> [!WARNING]
> Depending on what revision of nixpkgs your system uses, this may result in binaries that differ from the above `packages` output
> If this is the case, you will not be able to use the binary cache
Example:
```nix
{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
prismlauncher = {
url = "github:PrismLauncher/PrismLauncher";
# Optional: Override the nixpkgs input of prismlauncher to use the same revision as the rest of your flake
# Note that this may break the reproducibility mentioned above, and you might not be able to access the binary cache
#
# inputs.nixpkgs.follows = "nixpkgs";
# This is not required for Flakes
@ -71,48 +121,6 @@ Example:
}
```
### Installing the package directly
Alternatively, if you don't want to use an overlay, you can install Prism Launcher directly by installing the `prismlauncher` package.
This way the installed package is fully reproducible.
Example:
```nix
{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
prismlauncher = {
url = "github:PrismLauncher/PrismLauncher";
# Optional: Override the nixpkgs input of prismlauncher to use the same revision as the rest of your flake
# Note that overriding any input of prismlauncher may break reproducibility
# inputs.nixpkgs.follows = "nixpkgs";
# This is not required for Flakes
inputs.flake-compat.follows = "";
};
};
outputs =
{ nixpkgs, prismlauncher, ... }:
{
nixosConfigurations.foo = nixpkgs.lib.nixosSystem {
modules = [
./configuration.nix
(
{ pkgs, ... }:
{
environment.systemPackages = [ prismlauncher.packages.${pkgs.system}.prismlauncher ];
}
)
];
};
};
}
```
### Installing the package ad-hoc (`nix shell`, `nix run`, etc.)
You can simply call the default package of this flake.
@ -148,12 +156,30 @@ Example (NixOS):
}
```
### Using the overlay (`fetchTarball`)
### Installing the package directly (`fetchTarball`)
We use flake-compat to allow using this Flake on a system that doesn't use flakes.
Example:
```nix
{ pkgs, ... }:
{
environment.systemPackages = [
(import (
builtins.fetchTarball "https://github.com/PrismLauncher/PrismLauncher/archive/develop.tar.gz"
)).packages.${pkgs.system}.prismlauncher
];
}
```
### Using the overlay (`fetchTarball`)
Alternatively, if you don't want to use our `packages` output, you can add our overlay to your instance of nixpkgs.
This results in Prism using your system's libraries
Example:
```nix
{ pkgs, ... }:
{
@ -167,24 +193,6 @@ Example:
}
```
### Installing the package directly (`fetchTarball`)
Alternatively, if you don't want to use an overlay, you can install Prism Launcher directly by installing the `prismlauncher` package.
This way the installed package is fully reproducible.
Example:
```nix
{ pkgs, ... }:
{
environment.systemPackages = [
(import (
builtins.fetchTarball "https://github.com/PrismLauncher/PrismLauncher/archive/develop.tar.gz"
)).packages.${pkgs.system}.prismlauncher
];
}
```
### Installing the package ad-hoc (`nix-env`)
You can add this repository as a channel and install its packages that way.