Refactor template: extract scripts, overlays, and hosts into separate modules

Co-authored-by: dwinkler1 <22460147+dwinkler1@users.noreply.github.com>

templates/rde/hosts/default.nix

@@ -0,0 +1,8 @@
+# Merges all host configurations from separate modules
+config: pkgs: let
+  pythonHosts = import ./python.nix config pkgs;
+  juliaHosts = import ./julia.nix config pkgs;
+  rHosts = import ./r.nix config pkgs;
+  utilsHosts = import ./utils.nix config pkgs;
+in
+  pythonHosts // juliaHosts // rHosts // utilsHosts

templates/rde/hosts/julia.nix

@@ -0,0 +1,34 @@
+# Julia-related host configurations
+config: pkgs: {
+  jl = {
+    enable = config.enabledLanguages.julia;
+    path = {
+      value = "${pkgs.julia-bin}/bin/julia";
+      args = ["--add-flags" "--project=."];
+    };
+  };
+
+  initJl = {
+    enable = config.enabledLanguages.julia;
+    path = {
+      value = "${pkgs.julia-bin}/bin/julia";
+      args = ["--add-flags" "--project=. -e 'using Pkg; Pkg.instantiate(); Pkg.add(\"Pluto\")'"];
+    };
+  };
+
+  pluto = let
+    runPluto = ''
+      import Pkg; import TOML; Pkg.instantiate();
+      if !isfile("Project.toml") || !haskey(TOML.parsefile(Base.active_project())["deps"], "Pluto")
+        Pkg.add("Pluto");
+      end
+      import Pluto; Pluto.run();
+    '';
+  in {
+    enable = config.enabledLanguages.julia;
+    path = {
+      value = "${pkgs.julia-bin}/bin/julia";
+      args = ["--add-flags" "--project=. -e '${runPluto}'"];
+    };
+  };
+}

templates/rde/hosts/python.nix

@@ -0,0 +1,82 @@
+# Python-related host configurations
+config: pkgs: {
+  marimo = let
+    marimoInit = ''
+      set -euo pipefail
+      if [[ ! -f "pyproject.toml" ]]; then
+        echo "🐍 Initializing UV project..."
+        uv init
+        echo "📦 Adding Marimo..."
+        uv add marimo
+        echo "--------------------------------------------------------------------------"
+        echo "✅ Python project initialized!"
+        echo "run 'uv add PACKAGE' to add more python packages."
+        echo "--------------------------------------------------------------------------"
+      else
+        echo "--------------------------------------------------------------------------"
+        echo "🔄 Syncing existing project..."
+        uv sync
+        echo "🐍 Launching Marimo..."
+        echo "--------------------------------------------------------------------------"
+      fi
+    '';
+  in {
+    enable = config.enabledLanguages.python;
+    path = {
+      value = "${pkgs.uv}/bin/uv";
+      args = [
+        "--run"
+        "${marimoInit}"
+        "--add-flags"
+        "run marimo edit \"$@\""
+      ];
+    };
+  };
+
+  py = {
+    enable = config.enabledLanguages.python;
+    path = {
+      value = "${pkgs.python.interpreter}";
+    };
+  };
+
+  ipy = let
+    ipythonInit = ''
+      set -euo pipefail
+      if [[ ! -f "pyproject.toml" ]]; then
+        echo "🐍 Initializing UV project..."
+        uv init
+        echo "📦 Adding IPython..."
+        uv add ipython
+        echo "--------------------------------------------------------------------------"
+        echo "✅ Python project initialized!"
+        echo "run 'uv add PACKAGE' to add more python packages."
+        echo "--------------------------------------------------------------------------"
+      else
+        echo "--------------------------------------------------------------------------"
+        echo "🔄 Syncing existing project..."
+        echo "📦 Ensuring IPython is installed..."
+        uv add ipython
+        uv sync
+        echo "🐍 Launching IPython..."
+        echo "--------------------------------------------------------------------------"
+      fi
+    '';
+  in {
+    enable = config.enabledLanguages.python;
+    path = {
+      value = "${pkgs.uv}/bin/uv";
+      args = [
+        "--run"
+        "${ipythonInit}"
+        "--add-flags"
+        "run ipython \"$@\""
+      ];
+    };
+  };
+
+  initPython = {
+    enable = config.enabledLanguages.python;
+    path.value = "${pkgs.initPython}/bin/initPython";
+  };
+}

templates/rde/hosts/r.nix

@@ -0,0 +1,10 @@
+# R-related host configurations
+config: pkgs: {
+  r = {
+    enable = config.enabledLanguages.r;
+    path = {
+      value = "${pkgs.rWrapper}/bin/R";
+      args = ["--add-flags" "--no-save --no-restore"];
+    };
+  };
+}

templates/rde/hosts/utils.nix

@@ -0,0 +1,53 @@
+# Utility and common host configurations
+config: pkgs: {
+  g = {
+    enable = true;
+    path = {
+      value = "${pkgs.neovide}/bin/neovide";
+      args = [
+        "--add-flags"
+        "--neovim-bin ${config.defaultPackageName}"
+      ];
+    };
+  };
+
+  initProject = {
+    enable = true;
+    path = {
+      value = "${pkgs.initProject}/bin/initProject";
+    };
+  };
+
+  initDevenv = {
+    enable = config.enabledPackages.devenv;
+    path = {
+      value = "${pkgs.devenv}/bin/devenv";
+      args = ["--add-flags" "init"];
+    };
+  };
+
+  activateDevenv = {
+    enable = config.enabledPackages.devenv;
+    path = {
+      value = "${pkgs.activateDevenv}/bin/activateDevenv";
+    };
+  };
+
+  devenv = {
+    enable = config.enabledPackages.devenv;
+    path = {
+      value = "${pkgs.devenv}/bin/devenv";
+    };
+  };
+
+  updateDeps = {
+    enable = true;
+    path = {
+      value = "${pkgs.updateDeps}/bin/updateDeps";
+    };
+  };
+
+  node.enable = true;
+  perl.enable = true;
+  ruby.enable = true;
+}