feat: run ai agents on homelab (#251)

* feat: run ai agents on kana & ruby

* fix: upload vm

hosts/idols-ruby/packages.nix

@@ -0,0 +1,81 @@
+{ pkgs, ... }:
+{
+  # https://github.com/Mic92/nix-ld
+  #
+  # nix-ld will install itself at `/lib64/ld-linux-x86-64.so.2` so that
+  # it can be used as the dynamic linker for non-NixOS binaries.
+  #
+  # nix-ld works like a middleware between the actual link loader located at `/nix/store/.../ld-linux-x86-64.so.2`
+  # and the non-NixOS binaries. It will:
+  #
+  #   1. read the `NIX_LD` environment variable and use it to find the actual link loader.
+  #   2. read the `NIX_LD_LIBRARY_PATH` environment variable and use it to set the `LD_LIBRARY_PATH` environment variable
+  #      for the actual link loader.
+  #
+  # nix-ld's nixos module will set default values for `NIX_LD` and `NIX_LD_LIBRARY_PATH` environment variables, so
+  # it can work out of the box:
+  #
+  #  - https://github.com/NixOS/nixpkgs/blob/nixos-25.11/nixos/modules/programs/nix-ld.nix#L37-L40
+  #
+  # You can overwrite `NIX_LD_LIBRARY_PATH` in the environment where you run the non-NixOS binaries to customize the
+  # search path for shared libraries.
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [
+      stdenv.cc.cc
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    nodejs_24
+    pnpm
+
+    #-- python
+    conda
+    uv # python project package manager
+    pipx # Install and Run Python Applications in Isolated Environments
+    (python313.withPackages (
+      ps: with ps; [
+        pandas
+        requests
+        pyquery
+        pyyaml
+        numpy
+
+        # model downloaders
+        huggingface-hub
+        modelscope
+      ]
+    ))
+
+    rustc
+    cargo # rust package manager
+    go
+
+    # cryptography
+    age
+    sops
+    rclone
+    gnupg
+
+    # cloud-native
+    kubectl
+    istioctl
+    kubevirt # virtctl
+    kubernetes-helm
+    fluxcd
+    terraform
+
+    # db related
+    pgcli
+    mongosh
+    sqlite
+
+    yt-dlp # youtube/bilibili/soundcloud/... video/music downloader
+
+    # need to run `conda-install` before using it
+    # need to run `conda-shell` before using command `conda`
+    # conda is not available for MacOS
+    conda
+  ];
+}