diff --git a/.github/workflows/nodes.yml b/.github/workflows/nodes.yml
index 12426ad1..0d63f2fb 100644
--- a/.github/workflows/nodes.yml
+++ b/.github/workflows/nodes.yml
@@ -3,68 +3,6 @@ env:
   CI_CONFIG: ./ci/nodes.nix
   CI_PLATFORM: gh-actions
 jobs:
-  chen:
-    name: nodes-chen
-    runs-on: ubuntu-latest
-    steps:
-    - id: checkout
-      name: git clone
-      uses: actions/checkout@v1
-      with:
-        submodules: false
-    - id: nix-install
-      name: nix install
-      uses: arcnmx/ci/actions/nix/install@nix2.4
-    - id: ci-setup
-      name: nix setup
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.chen.run.bootstrap
-        quiet: false
-    - id: architectures
-      name: prepare for emulated builds
-      run: 'sudo $(which archbinfmt)
-
-        '
-    - id: ci-dirty
-      name: nix test dirty
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.chen.run.test
-        command: ci-build-dirty
-        quiet: false
-        stdout: ${{ runner.temp }}/ci.build.dirty
-    - id: ci-test
-      name: nix test build
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.chen.run.test
-        command: ci-build-realise
-        ignore-exit-code: true
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.dirty
-    - env:
-        CI_EXIT_CODE: ${{ steps.ci-test.outputs.exit-code }}
-      id: ci-summary
-      name: nix test results
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.chen.run.test
-        command: ci-build-summarise
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.dirty
-        stdout: ${{ runner.temp }}/ci.build.cache
-    - env:
-        CACHIX_SIGNING_KEY: ${{ secrets.CACHIX_SIGNING_KEY }}
-      id: ci-cache
-      if: always()
-      name: nix test cache
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.chen.run.test
-        command: ci-build-cache
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.cache
   ci-check:
     name: nodes check
     runs-on: ubuntu-latest
@@ -276,68 +214,6 @@ jobs:
         command: ci-build-cache
         quiet: false
         stdin: ${{ runner.temp }}/ci.build.cache
-  ran:
-    name: nodes-ran
-    runs-on: ubuntu-latest
-    steps:
-    - id: checkout
-      name: git clone
-      uses: actions/checkout@v1
-      with:
-        submodules: false
-    - id: nix-install
-      name: nix install
-      uses: arcnmx/ci/actions/nix/install@nix2.4
-    - id: ci-setup
-      name: nix setup
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.ran.run.bootstrap
-        quiet: false
-    - id: architectures
-      name: prepare for emulated builds
-      run: 'sudo $(which archbinfmt)
-
-        '
-    - id: ci-dirty
-      name: nix test dirty
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.ran.run.test
-        command: ci-build-dirty
-        quiet: false
-        stdout: ${{ runner.temp }}/ci.build.dirty
-    - id: ci-test
-      name: nix test build
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.ran.run.test
-        command: ci-build-realise
-        ignore-exit-code: true
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.dirty
-    - env:
-        CI_EXIT_CODE: ${{ steps.ci-test.outputs.exit-code }}
-      id: ci-summary
-      name: nix test results
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.ran.run.test
-        command: ci-build-summarise
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.dirty
-        stdout: ${{ runner.temp }}/ci.build.cache
-    - env:
-        CACHIX_SIGNING_KEY: ${{ secrets.CACHIX_SIGNING_KEY }}
-      id: ci-cache
-      if: always()
-      name: nix test cache
-      uses: arcnmx/ci/actions/nix/run@nix2.4
-      with:
-        attrs: ci.job.ran.run.test
-        command: ci-build-cache
-        quiet: false
-        stdin: ${{ runner.temp }}/ci.build.cache
   renko:
     name: nodes-renko
     runs-on: ubuntu-latest
diff --git a/nixos/systems/chen.nix b/nixos/systems/chen.nix
deleted file mode 100644
index 536de76f..00000000
--- a/nixos/systems/chen.nix
+++ /dev/null
@@ -1,84 +0,0 @@
-{ meta, config, pkgs, lib, ... }:
-
-with lib;
-
-{
-  # Imports
-
-  imports = with meta; [
-    hardware.eeepc-1015pem
-    nixos.network
-    nixos.arc
-    services.kattv2
-    services.dnscrypt-proxy
-  ];
-
-  # Terraform
-
-  deploy.tf = {
-    resources.chen = {
-      provider = "null";
-      type = "resource";
-      connection = {
-        port = head config.services.openssh.ports;
-        host = config.network.addresses.private.nixos.ipv4.address;
-      };
-    };
-  };
-
-  # File Systems and Swap
-
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/fa06ba90-ffc9-4ca6-b1cf-1205340a975e";
-      fsType = "ext4";
-    };
-
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/BF39-2AA3";
-      fsType = "vfat";
-    };
-
-  swapDevices =
-    [ { device = "/dev/disk/by-uuid/9c88235e-9705-4b80-a988-e95eda06124f"; }
-    ];
-
-  # Bootloader
-
-  boot = {
-    initrd = {
-      availableKernelModules = [ "xhci_pci" "usb_storage" "sd_mod" "sdhci_acpi" ];
-    };
-    loader = {
-      systemd-boot.enable = true;
-      efi.canTouchEfiVariables = true;
-    };
-  };
-
-  # Hardware
-
-  services.logind.lidSwitchExternalPower = "ignore";
-
-  # Networking
-
-  networking = {
-    hostId = "9f89b327";
-    useDHCP = false;
-    wireless = {
-      enable = false;
-      userControlled.enable = false;
-      interfaces = singleton "wlp1s0";
-    };
-    interfaces.enp0s20u1 = {
-      useDHCP = true;
-    };
-  };
-
-  networks.chitei = {
-    interfaces = [ "enp0s20u1" "wlp1s0" ];
-    ipv4 = "192.168.1.196";
-  };
-
-  # State
-
-  system.stateVersion = "20.09";
-}
diff --git a/nixos/systems/ran.nix b/nixos/systems/ran.nix
deleted file mode 100644
index 017748d3..00000000
--- a/nixos/systems/ran.nix
+++ /dev/null
@@ -1,56 +0,0 @@
-{ meta, config, pkgs, lib, ... }:
-
-with lib;
-
-{
-  # Imports
-
-  imports = with meta; [
-    hardware.eeepc-1015pem
-    hardware.local
-    nixos.network
-    nixos.arc
-    services.kattv
-    services.dnscrypt-proxy
-  ];
-
-  # File Systems and Swap
-
-  fileSystems = {
-    "/" = {
-      device = "/dev/disk/by-uuid/469a684b-eb8f-48a8-8f98-be58528312c4";
-      fsType = "ext4";
-    };
-  };
-
-  swapDevices = [{ device = "/dev/disk/by-uuid/2223e305-79c9-45b3-90d7-560dcc45775a"; }];
-
-  # Bootloader
-
-  boot.loader.grub = {
-    enable = true;
-    version = 2;
-    device = "/dev/sda";
-  };
-
-  # Hardware
-
-  services.logind.lidSwitchExternalPower = "ignore";
-
-  # Networking
-
-  networking = {
-    hostId = "9f89b327";
-    useDHCP = false;
-    interfaces.enp1s0.useDHCP = true;
-  };
-
-  networks.chitei = {
-    interfaces = [ "enp1s0" ];
-    ipv4 = "192.168.1.215";
-  };
-
-  # State
-
-  system.stateVersion = "20.09";
-}
diff --git a/nixos/systems/yukari.nix b/nixos/systems/yukari.nix
index a05bfb48..492248c8 100644
--- a/nixos/systems/yukari.nix
+++ b/nixos/systems/yukari.nix
@@ -6,8 +6,6 @@
     nixos.arc
     services.ha
     services.nextcloud
-    #services.kattv-ingest
-    #services.kattv2-ingest
     services.postgres
     services.nfs
     services.nginx