plumjam/nixos - Change SWFDHDLSVNYC65EDFWXWC27KGHDW42QAUP74F4TGJHWTT6RBH6WAC

ncps: Add and configure (nix cache proxy).

Created by PlumJam on February 7, 2026

SWFDHDLSVNYC65EDFWXWC27KGHDW42QAUP74F4TGJHWTT6RBH6WAC

Dependencies

In channels

main

Change contents

Replacement in modules/object-storage.nix at line 192 [4.6966]

B:BD[4.9663] → [2.1839:1890]

        extra-substituters = mkBefore [ s3Cache ];

[4.9663]

[4.9705]

        substituters = mkBefore [ s3Cache ];

File addition: ncps.nix (----------)

[5.2]

let
  ncpsBase =
    {
      lib,
      config,
      ...
    }:
    let
      inherit (lib.lists) singleton;
      inherit (lib.types) str;
      inherit (lib.options) mkOption;
      inherit (lib.modules) mkBefore;
      inherit (config) networking;
      inherit (config.nix) settings;
      urls = settings.extra-substituters ++ settings.substituters or [ ];
      publicKeys = settings.extra-trusted-public-keys ++ settings.trusted-public-keys or [ ];
      hostName = "cache-proxy-${networking.hostName}";
      localUrl = "http://localhost:${port}";
      port = "8501";
    in
    {
      options.nix-cache-proxy.publicKey = mkOption {
        type = str;
        default = "";
        description = "Public key for the local cache proxy";
      };
      config = {
        assertions = singleton {
          assertion = config.nix-cache-proxy.publicKey != "";
          message = "nix-cache-proxy.publicKey must be set to use the local cache proxy.";
        };
        nix.settings.substituters = mkBefore [ localUrl ];
        nix.settings.extra-trusted-public-keys = mkBefore [
          config.nix-cache-proxy.publicKey
        ];
        services.ncps = {
          enable = true;
          cache = {
            inherit hostName;
            upstream = {
              inherit urls publicKeys;
            };
          };
        };
      };
    };
in
{
  flake.modules.nixos.nix-cache-proxy = ncpsBase;
  flake.modules.darwin.nix-cache-proxy = ncpsBase;
}

Replacement in modules/hosts.nix at line 56 [7.110]
B:BD[6.19456] → [3.496:516]
```
      notifications
```
[6.19456]
[8.2906]
```
      nix-cache-proxy
```
Insertion in modules/hosts.nix at line 58 [7.110]
[8.2939]
[9.1772]
```
      notifications
```

Replacement in modules/hosts.nix at line 76 [7.110]

∅:D[10.1686] → [9.1861:1988]

B:BD[9.1861] → [9.1861:1988]

          age.rekey.hostPubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFDLlddona4PlORWd+QpR/7F5H46/Dic9vV23/YSrZl0 root@yuzu";

[10.1686]

[11.304]

          nix-cache-proxy.publicKey = "cache-proxy-yuzu:6dj2bWMTi/ScnDAilNuo/xERm5VZIa1/OUeBm0fUO3g=";

Insertion in modules/hosts.nix at line 78 [7.110]

[11.305]

[9.1989]

          age.rekey.hostPubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFDLlddona4PlORWd+QpR/7F5H46/Dic9vV23/YSrZl0 root@yuzu";

Deletion in modules/hosts.nix at line 111 [7.110]
B:BD[3.1024] → [3.1024:1047]
```
      disks-extra-swap
```
Insertion in modules/hosts.nix at line 125 [7.110]
[3.1274]
[3.1274]
```
      nix-cache-proxy
```

Replacement in modules/hosts.nix at line 146 [7.110]

∅:D[10.1754] → [9.2450:2577]

B:BD[9.2450] → [9.2450:2577]

          age.rekey.hostPubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEzfoVKZDyiyyMiX1JRFaaTELspG25MlLNq0kI2AANTa root@date";

[10.1754]

[12.1959]

          nix-cache-proxy.publicKey = "cache-proxy-date:3oT4ugNS3aoKKedKbX3QtDbiI3+IOjhJ/Ka8kZeNEzc=";

Insertion in modules/hosts.nix at line 152 [7.110]

[12.2137]

[9.2655]

          age.rekey.hostPubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEzfoVKZDyiyyMiX1JRFaaTELspG25MlLNq0kI2AANTa root@date";

Insertion in modules/hosts.nix at line 340 [7.110]
[3.2306]
[13.636]
```
      nix-cache-proxy
```

Insertion in modules/hosts.nix at line 350 [7.110]

[10.2019]

[14.6800]

          nix-cache-proxy.publicKey = "cache-proxy-sloe:naaLkMoioaUUujHWdn8QUwnjxlI7XiJEZkGqPRffPPw=";

ncps: Add and configure (nix cache proxy).

Dependencies

In channels

Change contents

Replacement in modules/object-storage.nix at line 192 [4.6966]

File addition: ncps.nix (----------)

Replacement in modules/hosts.nix at line 56 [7.110]

Insertion in modules/hosts.nix at line 58 [7.110]

Replacement in modules/hosts.nix at line 76 [7.110]

Insertion in modules/hosts.nix at line 78 [7.110]

Deletion in modules/hosts.nix at line 111 [7.110]

Insertion in modules/hosts.nix at line 125 [7.110]

Replacement in modules/hosts.nix at line 146 [7.110]

Insertion in modules/hosts.nix at line 152 [7.110]

Insertion in modules/hosts.nix at line 340 [7.110]

Insertion in modules/hosts.nix at line 350 [7.110]