chore(nix): remove legacy non-flake configuration

.envrc

@@ -0,0 +1,2 @@
+use flake
+watch_file flake.nix

.gitignore

@@ -1,6 +1,5 @@
 *.swp
 .direnv
-.envrc
 Deployments/syncserver.nix
 examples
 result

default.nix

@@ -1,23 +0,0 @@
-{
-  sources ? import ./nix/sources.nix,
-  system ? builtins.currentSystem,
-  crossSystem ? null,
-  config ? {},
-  alejandraUnstable ? (import sources.nixpkgsUnstable {}).alejandra,
-  cardanoNodeProject ? import sources.cardano-node {},
-} @ args:
-with import ./nix args; {
-  shell = mkShell {
-    inherit (import sources.niv {}) niv;
-    buildInputs = [
-      alejandraUnstable # The Uncompromising Nix Code Formatter
-      cardanoNodeProject.cardano-cli # required for KES key rotation
-      niv
-      nixops_unstable_minimal # work around for issue #127423
-      tea # Gitea official CLI client
-      treefmt # one CLI to format the code tree
-    ];
-    NIX_PATH = "nixpkgs=${sources.nixpkgs}";
-    NIXOPS_DEPLOYMENT = "${globals.deploymentName}";
-  };
-}

flake.nix

@@ -0,0 +1,15 @@
+{
+  description = "mio-ops deployment";
+
+  inputs = {
+    cardano-node.url = "github:input-output-hk/cardano-node/?ref=1.35.7";
+    daedalus.url = "github:input-output-hk/daedalus/?ref=5.2.0";
+    iohkNix.url = "github:input-output-hk/iohk-nix/?ref=df1da282f996ec46b33379407df99613a1fbafdd";
+    nix.url = "github:NixOS/nix/?ref=2.24.3";
+    nixpkgs.url = github:NixOS/nixpkgs/?ref=nixos-24.05;
+    nixpkgsUnstable.url = github:NixOS/nixpkgs/?ref=nixos-unstable;
+    utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = {...} @ args: import ./outputs.nix args;
+}

globals-defaults.nix

@@ -1 +0,0 @@
-{}

globals.nix

@@ -1,11 +0,0 @@
-self: super: {
-  globals =
-    import ./globals-defaults.nix
-    // rec {
-      deploymentName = "mio-ops";
-
-      domain = "mcwhirter.io";
-
-      environment = "${deploymentName}";
-    };
-}

nix/sources.json

@@ -1,107 +0,0 @@
-{
-    "cardano-node": {
-        "branch": "refs/tags/1.35.7",
-        "description": "The core component that is used to participate in a Cardano decentralised blockchain.",
-        "homepage": "https://cardano.org",
-        "owner": "input-output-hk",
-        "repo": "cardano-node",
-        "rev": "f0b4ac897dcbefba9fa0d247b204a24543cf55f6",
-        "sha256": "0s2jkj4mwl03hxg4ff9kyw41s32xbf31rnhag2m1qrglgsh8wzw9",
-        "type": "tarball",
-        "url": "https://github.com/input-output-hk/cardano-node/archive/f0b4ac897dcbefba9fa0d247b204a24543cf55f6.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "daedalus": {
-        "branch": "release/5.2.0",
-        "description": "The open source cryptocurrency wallet for ada, built to grow with the community",
-        "homepage": "https://daedaluswallet.io/",
-        "owner": "input-output-hk",
-        "repo": "daedalus",
-        "rev": "2990f5a44189097b3de2e7e7a19caa8062a8ae7b",
-        "sha256": "1w2w7qfashbqimcywzvhh0z5jrlfaja04sgi6p5hp08adwad6r92",
-        "type": "tarball",
-        "url": "https://github.com/input-output-hk/daedalus/archive/2990f5a44189097b3de2e7e7a19caa8062a8ae7b.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "iohk-nix": {
-        "branch": "master",
-        "description": "nix scripts shared across projects",
-        "homepage": null,
-        "owner": "input-output-hk",
-        "repo": "iohk-nix",
-        "rev": "df1da282f996ec46b33379407df99613a1fbafdd",
-        "sha256": "0vpcyrswxkynn2q37qsrhvf62whk2ijpcwqnamxcchcq6lwfpn0l",
-        "type": "tarball",
-        "url": "https://github.com/input-output-hk/iohk-nix/archive/df1da282f996ec46b33379407df99613a1fbafdd.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "mcwhirter-io": {
-        "branch": "nixos-23.11",
-        "rev": "2ca0244e2ff130ca851bb2487b03b606b701286a",
-        "sha256": "1alh4z2qpnh1wv3mclnmh8f3cqnks4h6hcrq1kwl5xz4xs2pc1ss",
-        "type": "tarball",
-        "url": "https://reciproka.dev/sercanto/mcwhirter.io/archive/2ca0244e2ff130ca851bb2487b03b606b701286a.tar.gz",
-        "url_template": "https://reciproka.dev/sercanto/mcwhirter.io/archive/<rev>.tar.gz"
-    },
-    "niv": {
-        "branch": "master",
-        "description": "Easy dependency management for Nix projects",
-        "homepage": "https://github.com/nmattia/niv",
-        "owner": "nmattia",
-        "repo": "niv",
-        "rev": "82e5cd1ad3c387863f0545d7591512e76ab0fc41",
-        "sha256": "090l219mzc0gi33i3psgph6s2pwsc8qy4lyrqjdj4qzkvmaj65a7",
-        "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/82e5cd1ad3c387863f0545d7591512e76ab0fc41.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "nixos-23.05": {
-        "branch": "nixos-23.05",
-        "description": "Nix Packages collection & NixOS",
-        "homepage": "",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
-        "sha256": "05cbl1k193c9la9xhlz4y6y8ijpb2mkaqrab30zij6z4kqgclsrd",
-        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/70bdadeb94ffc8806c0570eb5c2695ad29f0e421.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "nixos2111": {
-        "branch": "nixos-21.11",
-        "description": "Nix Packages collection",
-        "homepage": "",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "63198c9ccefdbd337cef0d85db0ea2689f4ce418",
-        "sha256": "05gc6xyv8a2dppngm1q44j85j769lr90lg20s6jv62gfg344i50r",
-        "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/63198c9ccefdbd337cef0d85db0ea2689f4ce418.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "nixpkgs": {
-        "branch": "nixos-24.05",
-        "builtin": false,
-        "description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
-        "homepage": "https://github.com/NixOS/nixpkgs",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "c3d4ac725177c030b1e289015989da2ad9d56af0",
-        "sha256": "1n3dm76ip39zgw75jjn8ak9yp25m02ya1mzzg3764yfqq4jz18mj",
-        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/c3d4ac725177c030b1e289015989da2ad9d56af0.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
-    "nixpkgsUnstable": {
-        "branch": "nixos-unstable",
-        "description": "Nix Packages collection",
-        "homepage": "",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "d04953086551086b44b6f3c6b7eeb26294f207da",
-        "sha256": "12inzywn6w6ikfjicbzka0v9xd6gvsx4cr6mlc3jslm5ypvqdk44",
-        "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/d04953086551086b44b6f3c6b7eeb26294f207da.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    }
-}

nix/sources.nix

@@ -1,141 +0,0 @@
-# This file has been generated by Niv.
-let
-  #
-  # The fetchers. fetch_<type> fetches specs of type <type>.
-  #
-  fetch_file = pkgs: spec:
-    if spec.builtin or true
-    then builtins_fetchurl {inherit (spec) url sha256;}
-    else pkgs.fetchurl {inherit (spec) url sha256;};
-
-  fetch_tarball = pkgs: spec:
-    if spec.builtin or true
-    then builtins_fetchTarball {inherit (spec) url sha256;}
-    else pkgs.fetchzip {inherit (spec) url sha256;};
-
-  fetch_git = spec:
-    builtins.fetchGit {
-      url = spec.repo;
-      inherit (spec) rev ref;
-    };
-
-  fetch_builtin-tarball = spec:
-    builtins.trace ''
-      WARNING:
-        The niv type "builtin-tarball" will soon be deprecated. You should
-        instead use `builtin = true`.
-
-        $ niv modify <package> -a type=tarball -a builtin=true
-    ''
-    builtins_fetchTarball {inherit (spec) url sha256;};
-
-  fetch_builtin-url = spec:
-    builtins.trace ''
-      WARNING:
-        The niv type "builtin-url" will soon be deprecated. You should
-        instead use `builtin = true`.
-
-        $ niv modify <package> -a type=file -a builtin=true
-    '' (builtins_fetchurl {inherit (spec) url sha256;});
-
-  #
-  # Various helpers
-  #
-
-  # The set of packages used when specs are fetched using non-builtins.
-  mkPkgs = sources: let
-    sourcesNixpkgs =
-      import (builtins_fetchTarball {inherit (sources.nixpkgs) url sha256;})
-      {};
-    hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
-    hasThisAsNixpkgsPath = <nixpkgs> == ./.;
-  in
-    if builtins.hasAttr "nixpkgs" sources
-    then sourcesNixpkgs
-    else if hasNixpkgsPath && !hasThisAsNixpkgsPath
-    then import <nixpkgs> {}
-    else
-      abort ''
-        Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
-        add a package called "nixpkgs" to your sources.json.
-      '';
-
-  # The actual fetching function.
-  fetch = pkgs: name: spec:
-    if !builtins.hasAttr "type" spec
-    then abort "ERROR: niv spec ${name} does not have a 'type' attribute"
-    else if spec.type == "file"
-    then fetch_file pkgs spec
-    else if spec.type == "tarball"
-    then fetch_tarball pkgs spec
-    else if spec.type == "git"
-    then fetch_git spec
-    else if spec.type == "builtin-tarball"
-    then fetch_builtin-tarball spec
-    else if spec.type == "builtin-url"
-    then fetch_builtin-url spec
-    else
-      abort
-      "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
-
-  # Ports of functions for older nix versions
-
-  # a Nix version of mapAttrs if the built-in doesn't exist
-  mapAttrs =
-    builtins.mapAttrs
-    or (f: set:
-      with builtins;
-        listToAttrs (map (attr: {
-          name = attr;
-          value = f attr set.${attr};
-        }) (attrNames set)));
-
-  # fetchTarball version that is compatible between all the versions of Nix
-  builtins_fetchTarball = {
-    url,
-    sha256,
-  } @ attrs: let
-    inherit (builtins) lessThan nixVersion fetchTarball;
-  in
-    if lessThan nixVersion "1.12"
-    then fetchTarball {inherit url;}
-    else fetchTarball attrs;
-
-  # fetchurl version that is compatible between all the versions of Nix
-  builtins_fetchurl = {
-    url,
-    sha256,
-  } @ attrs: let
-    inherit (builtins) lessThan nixVersion fetchurl;
-  in
-    if lessThan nixVersion "1.12"
-    then fetchurl {inherit url;}
-    else fetchurl attrs;
-
-  # Create the final "sources" from the config
-  mkSources = config:
-    mapAttrs (name: spec:
-      if builtins.hasAttr "outPath" spec
-      then
-        abort
-        "The values in sources.json should not have an 'outPath' attribute"
-      else spec // {outPath = fetch config.pkgs name spec;})
-    config.sources;
-
-  # The "config" used by the fetchers
-  mkConfig = {
-    sourcesFile ? ./sources.json,
-    sources ? builtins.fromJSON (builtins.readFile sourcesFile),
-    pkgs ? mkPkgs sources,
-  }: rec {
-    # The sources, i.e. the attribute set of spec name to spec
-    inherit sources;
-
-    # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
-    inherit pkgs;
-  };
-in
-  mkSources (mkConfig {})
-  // {
-    __functor = _: settings: mkSources (mkConfig settings);
-  }

nixops.nix

@@ -1,34 +0,0 @@
-# NixOps configuration for the mio-ops nodes
-{
-  network = {
-    description = "mio-ops nodes";
-    enableRollback = true;
-  };
-
-  network.storage.legacy = {databasefile = "~/.nixops/deployments.nixops";};
-
-  defaults = {
-    config,
-    pkgs,
-    lib,
-    ...
-  }: {
-    system.autoUpgrade.enable = false; # Disabled as it conflicts with NixOps
-  };
-
-  airgead = import hosts/airgead.nix;
-  brighde = import hosts/brighde.nix;
-  ceilidh = import hosts/ceilidh.nix;
-  cuallaidh = import hosts/cuallaidh.nix;
-  dhu = import hosts/dhu.nix;
-  dionach = import hosts/dionach.nix;
-  iolear-beag = import hosts/iolear-beag.nix;
-  doilidh = import hosts/doilidh.nix;
-  eamhair = import hosts/eamhair.nix;
-  ceitidh = import hosts/ceitidh.nix;
-  paidh-uachdar = import hosts/paidh-uachdar.nix;
-  sanganto = import hosts/sanganto.nix;
-  sercanto = import hosts/sercanto.nix;
-  sithlainnir = import hosts/sithlainnir.nix;
-  teintidh = import hosts/teintidh.nix;
-}

outputs.nix

@@ -0,0 +1,48 @@
+{
+  self,
+  daedalus,
+  nix,
+  nixpkgs,
+  nixpkgsUnstable,
+  utils,
+  ...
+} @ inputs:
+(utils.lib.eachDefaultSystem (system: let
+  deploymentName = "mio-ops";
+  pkgs = nixpkgs.legacyPackages."${system}";
+  nix_path = "nixpkgs=${nixpkgs}";
+in {
+  devShell =
+    pkgs.callPackage
+    ./shell.nix {
+      inherit (nix.packages."${pkgs.system}") nix;
+      inherit deploymentName;
+      inherit nix_path;
+    };
+  nixopsConfigurations."${pkgs.system}".default = {
+    inherit (inputs) nixpkgs;
+    network = {
+      description = "mio-ops nodes";
+      enableRollback = true;
+      storage.legacy = {databasefile = "~/.nixops/deployments.nixops";};
+    };
+    defaults = {};
+    airgead = import hosts/airgead.nix;
+    brighde = import hosts/brighde.nix;
+    ceilidh = import hosts/ceilidh.nix;
+    cuallaidh = import hosts/cuallaidh.nix;
+    dhu = import hosts/dhu.nix;
+    dionach = import hosts/dionach.nix;
+    iolear-beag = import hosts/iolear-beag.nix;
+    doilidh = import hosts/doilidh.nix;
+    eamhair = import hosts/eamhair.nix;
+    ceitidh = import hosts/ceitidh.nix;
+    paidh-uachdar = import hosts/paidh-uachdar.nix;
+    sanganto = import hosts/sanganto.nix;
+    sercanto = import hosts/sercanto.nix;
+    sithlainnir = import hosts/sithlainnir.nix;
+    teintidh = import hosts/teintidh.nix;
+  };
+}))
+// {
+}

profiles/cardano-node.nix

@@ -3,15 +3,15 @@
   config,
   pkgs,
   lib,
+  cardano-node,
+  iohkNix,
   ...
 }: let
-  sources = import ../nix/sources.nix;
-  cardanoNodeProject = import (sources.cardano-node + "/nix") {
-    gitrev = sources.cardano-node.rev;
+  cardanoNodeProject = import (cardano-node + "/nix") {
+    gitrev = cardano-node.rev;
   };
-  iohkNix = import (sources.iohk-nix) {};
 in {
-  imports = [../secrets/cardano/producers.nix "${sources.cardano-node}/nix/nixos"];
+  imports = [../secrets/cardano/producers.nix "${cardano-node.cardano-node}/nix/nixos"];
 
   environment.systemPackages = [cardanoNodeProject.cardano-cli];
 

profiles/daedalus.nix

@@ -2,11 +2,11 @@
 {
   config,
   pkgs,
+  daedalus,
   lib,
   ...
 }: let
-  sources = import ../nix/sources.nix;
-  daedalusProject = import sources.daedalus {};
+  daedalusProject = import daedalus.daedalus {};
   daedalusMainnet = daedalusProject.daedalus;
   #daedalusFlight = daedalusProject.daedalus {--argstr cluster mainnet_flight -o daedalusFlight};
 in {

profiles/games-kids.nix

@@ -2,11 +2,9 @@
 {
   config,
   pkgs,
+  nixpkgsUnstable,
   ...
-}: let
-  sources = import ../nix/sources.nix;
-  unstable = import sources.nixpkgsUnstable {};
-in {
+}: {
   imports = [
     ../profiles/minecraftClient.nix # Play Minecraft :-)
   ];
@@ -20,7 +18,7 @@ in {
     freeciv # Multiplayer (or single player), turn-based strategy game
     freedroidrpg # Isometric 3D RPG similar to game Diablo
     gcompris # Educational software suite, kids aged 2 to 10
-    unstable.grapejuice # Simple Wine+Roblox management tool
+    nixpkgsUnstable.grapejuice # Simple Wine+Roblox management tool
     #lincity_ng      # City building game
     meritous # Action-adventure dungeon crawl game
     minetest # Infinite-world block sandbox game

profiles/iog.nix

@@ -3,15 +3,13 @@
   config,
   pkgs,
   lib,
+  nix,
   ...
-}: let
-  sources = import ../nix/sources.nix;
-  nixVersion = (import sources.nixpkgs {}).nixVersions.latest;
-in {
+}: {
   imports = [../profiles/terminal-recording.nix ../profiles/nix-direnv.nix];
 
   nix = {
-    package = nixVersion;
+    package = nix;
     settings = {
       substituters = [
         "https://cache.nixos.org"

profiles/server_common.nix

@@ -4,10 +4,7 @@
   pkgs,
   lib,
   ...
-}: let
-  sources = import ../nix/sources.nix;
-  nixpkgs2305 = (import sources."nixos-23.05" {}).pkgs;
-in {
+}: {
   imports = [
     ../profiles/openssh.nix
     ../secrets/user-craige.nix

shell.nix

@@ -0,0 +1,21 @@
+{
+  pkgs ? import <nixpkgs> {},
+  deploymentName,
+  mkShell,
+  nix,
+  nix_path,
+}:
+with pkgs;
+  mkShell {
+    buildInputs = [
+      alejandra # The Uncompromising Nix Code Formatter
+      nix # Powerful package manager, makes packaging reliable & reproducible
+      nixops_unstable_minimal # work around for issue #127423
+      tea # Gitea official CLI client
+      treefmt # one CLI to format the code tree
+    ];
+    shellHook = ''
+      export NIX_PATH=${nix_path}
+      export NIXOPS_DEPLOYMENT=${deploymentName}
+    '';
+  }