diff --git a/homes/linux-desktop.nix b/homes/linux-desktop.nix
index 75de35d..32b4900 100644
--- a/homes/linux-desktop.nix
+++ b/homes/linux-desktop.nix
@@ -36,6 +36,19 @@ in {
   };
   systemd.user = {
     services = {
+      ollama = {
+        Unit = {
+          Description = "Ollama local LLM service";
+          After = [ "network.target" ];
+        };
+        Service = {
+          Type = "simple";
+          ExecStart = "${pkgs.ollama}/bin/ollama serve";
+          Restart = "always";
+        };
+        Install = { WantedBy = [ "default.target" ]; };
+      };
+
       freetube-sync = {
         Unit = {
           Description = "Sync FreeTube settings with Nextcloud";
diff --git a/inventory.yaml b/inventory.yaml
deleted file mode 100644
index 23211d9..0000000
--- a/inventory.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
----
-all:
-  hosts:
-    localhost:
-      ansible_connection: local
-  children:
-    workstations:
-      hosts:
-        harmony:
-          ansible_connection: local
-        odyssey:
-          ansible_connection: local
\ No newline at end of file
diff --git a/playbook.yaml b/playbook.yaml
deleted file mode 100644
index d8fc2dc..0000000
--- a/playbook.yaml
+++ /dev/null
@@ -1,22 +0,0 @@
----
-- name: Configure harmony
-  hosts: harmony
-  become: true
-  tasks:
-    - name: Include arch-specific tasks
-      ansible.builtin.include_tasks: playbooks/asahi.yaml
-    - name: Include Linux tasks
-      ansible.builtin.include_tasks: playbooks/fedora.yaml
-    - name: Include desktop tasks
-      ansible.builtin.include_tasks: playbooks/desktop.yaml
-
-- name: Configure odyssey
-  hosts: odyssey
-  become: true
-  tasks:
-    - name: Include arch-specific tasks
-      ansible.builtin.include_tasks: playbooks/amd64.yaml
-    - name: Include Linux tasks
-      ansible.builtin.include_tasks: playbooks/fedora.yaml
-    - name: Include desktop tasks
-      ansible.builtin.include_tasks: playbooks/desktop.yaml
diff --git a/playbooks/amd64.yaml b/playbooks/amd64.yaml
deleted file mode 100644
index e595d5a..0000000
--- a/playbooks/amd64.yaml
+++ /dev/null
@@ -1,42 +0,0 @@
----
-# Playbook for x86-64 specific systems
-
-### ================ ###
-### Package installs ###
-### ================ ###
-
-### Repositories ###
-- name: Install RPM Fusion free repository
-  ansible.builtin.dnf:
-    name: "https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-{{ ansible_distribution_major_version }}.noarch.rpm"
-    state: present
-    disable_gpg_check: false
-- name: Install RPM Fusion nonfree repository
-  ansible.builtin.dnf:
-    name: "https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-{{ ansible_distribution_major_version }}.noarch.rpm"
-    state: present
-    disable_gpg_check: false
-- name: Install RPM Fusion free-tainted repository
-  ansible.builtin.dnf:
-    name: rpmfusion-free-release-tainted
-    state: present
-- name: Install Zotero COPR repository
-  community.general.copr:
-    name: "mozes/zotero7"
-
-### Packages ###
-- name: Install x86-specific packages
-  ansible.builtin.dnf:
-    name:
-      - libdvdcss
-      - mkvtoolnix
-      - mpv
-      - x264
-      - x264-libs
-    state: present
-
-- name: Install VeraCrypt
-  ansible.builtin.dnf:
-    name: https://launchpad.net/veracrypt/trunk/1.26.20/+download/veracrypt-1.26.20-Fedora-40-x86_64.rpm
-    state: present
-    disable_gpg_check: true
diff --git a/playbooks/asahi.yaml b/playbooks/asahi.yaml
deleted file mode 100644
index f781650..0000000
--- a/playbooks/asahi.yaml
+++ /dev/null
@@ -1,20 +0,0 @@
----
-# Asahi Linux playbook - to be run on all Asahi Linux hosts
-
-### ================ ###
-### Package installs ###
-### ================ ###
-
-### Repositories ###
-- name: Install Zotero COPR repository
-  community.general.copr:
-    name: "@isaksamsten/Zotero"
-- name: Install VeraCrypt COPR repository
-  community.general.copr:
-    name: "@architektapx/veracrypt"
-
-### Packages ###
-- name: Install aarch64-specific packages
-  ansible.builtin.dnf:
-    name:
-      - veracrypt
diff --git a/playbooks/desktop.yaml b/playbooks/desktop.yaml
deleted file mode 100644
index e2e3bd6..0000000
--- a/playbooks/desktop.yaml
+++ /dev/null
@@ -1,84 +0,0 @@
----
-# Desktop environment playbook - common to all desktop Fedora hosts
-
-### ================ ###
-### Package installs ###
-### ================ ###
-
-### Repositories ###
-
-# Add Terra - the source of the Zed editor
-- name: Determine if Terra is installed
-  ansible.builtin.stat:
-    path: /etc/yum.repos.d/terra.repo
-  register: terra_installed
-- name: Install Terra repository
-  ansible.builtin.shell: |
-    dnf install --nogpgcheck --repofrompath 'terra,https://repos.fyralabs.com/terra$releasever' terra-release
-  when: not terra_installed.stat.exists
-  register: terra_install
-  changed_when: terra_install.rc == 0
-- name: Determine Terra repository priority
-  ansible.builtin.shell:
-    cmd: set -o pipefail && dnf --dump-repo-config=terra | grep 'priority = 100' || echo "false"
-    executable: /bin/bash
-  register: terra_check
-  changed_when: false
-- name: Set Terra repository priority to low
-  ansible.builtin.shell: dnf config-manager setopt terra\*.priority=100
-  when: "'false' in terra_check.stdout"
-  register: terra_priority
-  changed_when: terra_priority.rc != 0
-
-# Add FirefoxPWA repository
-- name: Install FirefoxPWA repository
-  ansible.builtin.yum_repository:
-    name: firefoxpwa
-    description: FirefoxPWA repository
-    baseurl: https://packagecloud.io/filips/FirefoxPWA/fedora/$releasever/$basearch
-    gpgcheck: true
-    gpgkey: https://packagecloud.io/filips/FirefoxPWA/gpgkey
-    enabled: true
-
-# Add RStudio copr repository
-- name: Install RStudio copr repository
-  community.general.copr:
-    name: "iucar/rstudio"
-
-### Packages ###
-
-# Install common desktop environment packages
-- name: Install common desktop environment packages
-  ansible.builtin.dnf:
-    name:
-      - chromium
-      - firefoxpwa
-      - inkscape
-      - kate
-      - kdenlive
-      - kdiff3
-      - krita
-      - musescore
-      - nextcloud-client
-      - nextcloud-client-dolphin
-      - obs-studio
-      - qownnotes
-      - qt
-      - rssguard
-      - rstudio-desktop
-      - steam
-      - thunderbird
-      - vlc
-      - vorta
-      - yakuake
-      - zed
-      - zotero
-      - R
-    state: present
-
-# noarch url packages
-- name: Install Microsoft Core Fonts
-  ansible.builtin.dnf:
-    name: https://downloads.sourceforge.net/project/mscorefonts2/rpms/msttcore-fonts-installer-2.6-1.noarch.rpm
-    state: present
-    disable_gpg_check: true
diff --git a/playbooks/fedora.yaml b/playbooks/fedora.yaml
deleted file mode 100644
index 95bb12f..0000000
--- a/playbooks/fedora.yaml
+++ /dev/null
@@ -1,45 +0,0 @@
----
-# Ansible playbook common to all Fedora systems
-
-### Package installs ###
-# Repositories
-
-# Tailscale
-- name: Install Tailscale repo
-  ansible.builtin.yum_repository:
-    name: tailscale-stable
-    description: Tailscale stable repo
-    baseurl: https://pkgs.tailscale.com/stable/fedora/$basearch
-    enabled: true
-    gpgcheck: true
-    gpgkey: https://pkgs.tailscale.com/stable/fedora/repo.gpg
-
-### dnf packages
-- name: Install common Linux packages
-  ansible.builtin.dnf:
-    name:
-      - tailscale
-      - zsh
-    state: present
-
-### ======================= ###
-### Install determinate nix ###
-### ======================= ###
-- name: Determine if Nix is installed
-  ansible.builtin.shell: |
-    /nix/var/nix/profiles/default/bin/nix --version
-  register: nix_check
-  ignore_errors: true
-  changed_when: false
-- name: Download Determinate Nix installer
-  ansible.builtin.get_url:
-    url: https://install.determinate.systems/nix
-    dest: /tmp/nix-installer
-    mode: 755
-  when: nix_check.rc != 0
-- name: Install Nix via Determinate Nix installer
-  ansible.builtin.shell: |
-    sh /tmp/nix-installer install linux --verbose --no-confirm
-  when: nix_check.rc != 0
-  register: nix_install
-  changed_when: nix_install.rc == 0