diff --git a/.gitea/workflows/build-disk.yml b/.gitea/workflows/build-disk.yml
deleted file mode 100644
index 88756c0..0000000
--- a/.gitea/workflows/build-disk.yml
+++ /dev/null
@@ -1,115 +0,0 @@
----
-name: Build disk images
-
-on:
-  workflow_dispatch:
-    inputs:
-      upload-to-s3:
-        description: "Upload to S3"
-        required: false
-        default: false
-        type: boolean
-      platform:
-        required: true
-        type: choice
-        options:
-          - amd64
-          - arm64
-  pull_request:
-    branches:
-      - main
-    paths:
-      - './disk_config/disk.toml'
-      - './disk_config/iso.toml'
-      - './.github/workflows/build-disk.yml'
-
-env:
-  IMAGE_NAME: ${{ github.event.repository.name }} # output of build.yml, keep in sync
-  IMAGE_REGISTRY: "ghcr.io/${{ github.repository_owner }}"  # do not edit
-  DEFAULT_TAG: "latest"
-  BIB_IMAGE: "ghcr.io/lorbuschris/bootc-image-builder:20250608" # "quay.io/centos-bootc/bootc-image-builder:latest" - see https://github.com/osbuild/bootc-image-builder/pull/954
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
-  cancel-in-progress: true
-
-jobs:
-  build:
-    name: Build disk images
-    runs-on: ${{ inputs.platform == 'amd64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
-    strategy:
-      fail-fast: false
-      matrix:
-        disk-type: ["qcow2", "anaconda-iso"]
-    permissions:
-      contents: read
-      packages: read
-      id-token: write
-
-    steps:
-      - name: Prepare environment
-        run: |
-          USER_UID=$(id -u)
-          USER_GID=$(id -g)
-          # Concatenate the types with a hyphen
-          DISK_TYPE=$(echo "${{ matrix.disk-type }}" | tr ' ' '-')
-          # Lowercase the image uri
-          echo "IMAGE_REGISTRY=${IMAGE_REGISTRY,,}" >> ${GITHUB_ENV}
-          echo "IMAGE_NAME=${IMAGE_NAME,,}" >> ${GITHUB_ENV}
-          echo "DISK_TYPE=${DISK_TYPE}" >> ${GITHUB_ENV}
-          echo "USER_UID=${USER_UID}" >> ${GITHUB_ENV}
-          echo "USER_GID=${USER_GID}" >> ${GITHUB_ENV}
-
-      - name: Install dependencies
-        if: inputs.platform == 'arm64'
-        run: |
-          set -x
-          sudo apt update -y
-          sudo apt install -y \
-            podman
-
-      - name: Maximize build space
-        if: inputs.platform != 'arm64'
-        uses: ublue-os/remove-unwanted-software@cc0becac701cf642c8f0a6613bbdaf5dc36b259e # v9
-        with:
-          remove-codeql: true
-
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-
-      - name: Build disk images
-        id: build
-        uses: osbuild/bootc-image-builder-action@main
-        with:
-          builder-image: ${{ env.BIB_IMAGE }}
-          config-file: ${{ matrix.disk-type == 'anaconda-iso' && './disk_config/iso.toml' || './disk_config/disk.toml' }}
-          image: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.DEFAULT_TAG }}
-          chown: ${{ env.USER_UID }}:${{ env.USER_GID }}
-          types: ${{ matrix.disk-type }}
-          additional-args: --use-librepo=True
-
-      - name: Upload disk images and Checksum to Job Artifacts
-        if: inputs.upload-to-s3 != true && github.event_name != 'pull_request'
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
-        with:
-          path: ${{ steps.build.outputs.output-directory }}
-          if-no-files-found: error
-          retention-days: 0
-          compression-level: 0
-          overwrite: true
-      
-      - name: Upload to S3
-        if: inputs.upload-to-s3 == true && github.event_name != 'pull_request'
-        shell: bash
-        env:
-          RCLONE_CONFIG_S3_TYPE: s3
-          RCLONE_CONFIG_S3_PROVIDER: ${{ secrets.S3_PROVIDER }}
-          RCLONE_CONFIG_S3_ACCESS_KEY_ID: ${{ secrets.S3_ACCESS_KEY_ID }}
-          RCLONE_CONFIG_S3_SECRET_ACCESS_KEY: ${{ secrets.S3_SECRET_ACCESS_KEY }}
-          RCLONE_CONFIG_S3_REGION: ${{ secrets.S3_REGION }}
-          RCLONE_CONFIG_S3_ENDPOINT: ${{ secrets.S3_ENDPOINT }}
-          SOURCE_DIR: ${{ steps.build.outputs.output-directory }}
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y rclone
-          rclone copy $SOURCE_DIR S3:${{ secrets.S3_BUCKET_NAME }}
\ No newline at end of file
diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 6a26172..88a2481 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -38,6 +38,10 @@ jobs:
     name: Build and push image
     runs-on: ubuntu-24.04
 
+    strategy:
+      matrix:
+        variant: [gnome, niri]
+
     permissions:
       contents: read
       packages: write
@@ -74,9 +78,9 @@ jobs:
           # This generates all the tags for your image, you can add custom tags here too!
           tags: |
             type=sha,enable=${{ github.event_name == 'pull_request' }}
-            type=raw,value=latest
-            type=raw,value=${{ env.FEDORA_BASE }}
-            type=raw,value=${{ env.FEDORA_BASE }}-{{date 'YYYYMMDD'}}
+            type=raw,value=latest-${{ matrix.variant }}
+            type=raw,value=${{ env.FEDORA_BASE }}-${{ matrix.variant }}
+            type=raw,value=${{ env.FEDORA_BASE }}-${{ matrix.variant }}-{{date 'YYYYMMDD'}}
             type=ref,event=pr
           labels: |
             io.artifacthub.package.readme-url=${{ env.README_URL }}
@@ -106,7 +110,7 @@ jobs:
         uses: redhat-actions/buildah-build@7a95fa7ee0f02d552a32753e7414641a04307056 # v2
         with:
           containerfiles: |
-            ./Containerfile
+            ./Containerfile.${{ matrix.variant }}
           build-args: |
             FEDORA_BASE=${{ env.FEDORA_BASE }}
           image: ${{ env.IMAGE_NAME }}
diff --git a/Containerfile b/Containerfile.gnome
similarity index 94%
rename from Containerfile
rename to Containerfile.gnome
index 588b154..5183285 100644
--- a/Containerfile
+++ b/Containerfile.gnome
@@ -1,4 +1,4 @@
-ARG FEDORA_BASE=42
+ARG FEDORA_BASE=43
 
 # Allow build scripts to be referenced without being copied into the final image
 FROM scratch AS ctx
@@ -28,7 +28,7 @@ RUN --mount=type=bind,from=ctx,source=/,target=/ctx \
   --mount=type=cache,dst=/var/cache \
   --mount=type=cache,dst=/var/log \
   --mount=type=tmpfs,dst=/tmp \
-  /ctx/build.sh && /ctx/cleanup.sh
+  /ctx/gnome/build.sh && /ctx/gnome/cleanup.sh
 
 ### LINTING
 ## Verify final image and contents are correct.
diff --git a/Containerfile.niri b/Containerfile.niri
new file mode 100644
index 0000000..737732a
--- /dev/null
+++ b/Containerfile.niri
@@ -0,0 +1,35 @@
+ARG FEDORA_BASE=43
+
+# Allow build scripts to be referenced without being copied into the final image
+FROM scratch AS ctx
+COPY build_files /
+COPY /sys_files /sys_files
+COPY cosign.pub /cosign.pub
+
+# Base Image
+FROM quay.io/fedora-ostree-desktops/base-atomic:$FEDORA_BASE
+
+### [IM]MUTABLE /opt
+## Some bootable images, like Fedora, have /opt symlinked to /var/opt, in order to
+## make it mutable/writable for users. However, some packages write files to this directory,
+## thus its contents might be wiped out when bootc deploys an image, making it troublesome for
+## some packages. Eg, google-chrome, docker-desktop.
+##
+## Uncomment the following line if one desires to make /opt immutable and be able to be used
+## by the package manager.
+
+RUN rm /opt && mkdir /opt
+
+### MODIFICATIONS
+## make modifications desired in your image and install packages by modifying the build.sh script
+## the following RUN directive does all the things required to run "build.sh" as recommended.
+
+RUN --mount=type=bind,from=ctx,source=/,target=/ctx \
+  --mount=type=cache,dst=/var/cache \
+  --mount=type=cache,dst=/var/log \
+  --mount=type=tmpfs,dst=/tmp \
+  /ctx/niri/build.sh && /ctx/niri/cleanup.sh
+
+### LINTING
+## Verify final image and contents are correct.
+RUN bootc container lint
diff --git a/build_files/build.sh b/build_files/gnome/build.sh
similarity index 100%
rename from build_files/build.sh
rename to build_files/gnome/build.sh
diff --git a/build_files/cleanup.sh b/build_files/gnome/cleanup.sh
similarity index 100%
rename from build_files/cleanup.sh
rename to build_files/gnome/cleanup.sh
diff --git a/build_files/niri/build.sh b/build_files/niri/build.sh
new file mode 100755
index 0000000..4b3ab63
--- /dev/null
+++ b/build_files/niri/build.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+
+set -ouex pipefail
+
+# Copy System Files onto root
+rsync -rvK /ctx/sys_files/ /
+
+# Copy cosign.pub key into the right location
+mkdir -p /etc/pki/containers
+cp /ctx/cosign.pub /etc/pki/containers/davejansen.pub
+
+### Install packages
+
+# Packages can be installed from any enabled yum repo on the image.
+# RPMfusion repos are available by default in ublue main images
+# List of rpmfusion packages can be found here:
+# https://mirrors.rpmfusion.org/mirrorlist?path=free/fedora/updates/39/x86_64/repoview/index.html&protocol=https&redirect=1
+
+# Install RPMFusion and enable fedora-multimedia with a higher priority than default
+if ! grep -q fedora-multimedia <(dnf5 repolist); then
+  # Enable or Install Repofile
+  #dnf5 install \
+  #  https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm \
+  #  https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
+
+  # Enable fedora-multimedia
+  dnf5 config-manager setopt fedora-multimedia.enabled=1 ||
+    dnf5 config-manager addrepo --from-repofile="https://negativo17.org/repos/fedora-multimedia.repo"
+fi
+
+# Set higher priority
+dnf5 config-manager setopt fedora-multimedia.priority=90
+
+# Remove Fedora's package that enforces their own (filtered) version of the
+# flathub repo is present, as-well as the system-installed Firefox as I prefer to use the Flatpak version
+dnf5 remove -y fedora-flathub-remote
+
+# Add Flathub to the image for eventual application
+mkdir -p /etc/flatpak/remotes.d/
+curl --retry 3 -Lo /etc/flatpak/remotes.d/flathub.flatpakrepo https://dl.flathub.org/repo/flathub.flatpakrepo
+
+# use override to replace mesa and others with less crippled versions
+OVERRIDES=(
+  "intel-gmmlib"
+  "intel-mediasdk"
+  "intel-vpl-gpu-rt"
+  "libheif"
+  "libva"
+  "libva-intel-media-driver"
+  "mesa-dri-drivers"
+  "mesa-filesystem"
+  "mesa-libEGL"
+  "mesa-libGL"
+  "mesa-libgbm"
+  "mesa-va-drivers"
+  "mesa-vulkan-drivers"
+)
+
+dnf5 distro-sync --skip-unavailable -y --repo='fedora-multimedia' "${OVERRIDES[@]}"
+dnf5 versionlock add "${OVERRIDES[@]}"
+
+# Remove additional repositories Fedora comes with out of the box
+# And don't raise an error if any of these files does not exist when attempting
+# to delete them.
+rm \
+  /etc/yum.repos.d/fedora-cisco-openh264.repo \
+  /etc/yum.repos.d/google-chrome.repo \
+  /etc/yum.repos.d/rpmfusion-nonfree-nvidia-driver.repo \
+  /etc/yum.repos.d/rpmfusion-nonfree-steam.repo \
+  /etc/yum.repos.d/_copr:copr.fedorainfracloud.org:phracek:PyCharm.repo \
+  2>&1
+
+# Add country query to all repo metalinks
+# shellcheck disable=SC2016
+sed -i -e '/^metalink\=/s/\$releasever\&arch\=\$basearch$/\$releasever\&arch\=\$basearch\&country\=KR,JP,TW/g' /etc/yum.repos.d/*.repo
+
+# Add 1Password repo
+#rpmkeys --import https://downloads.1password.com/linux/keys/1password.asc
+cp /ctx/rpm-keys/1password.asc /etc/pki/rpm-gpg/1password.asc
+sh -c 'echo -e "[1password]\nname=1Password Stable Channel\nbaseurl=https://downloads.1password.com/linux/rpm/stable/\$basearch\nenabled=1\ngpgcheck=1\nrepo_gpgcheck=1\ngpgkey=\"file:///etc/pki/rpm-gpg/1password.asc\"" > /etc/yum.repos.d/1password.repo'
+
+# Add Tailscale repo
+#rpmkeys --import https://pkgs.tailscale.com/stable/fedora/repo.gpg
+#dnf5 config-manager addrepo --from-repofile=https://pkgs.tailscale.com/stable/fedora/tailscale.repo
+cp /ctx/rpm-keys/tailscale.gpg /etc/pki/rpm-gpg/tailscale.gpg
+sh -c 'echo -e "[tailscale-stable]\nname=Tailscale stable\nbaseurl=https://pkgs.tailscale.com/stable/fedora/\$basearch\nenabled=1\ngpgcheck=1\nrepo_gpgcheck=1\ngpgkey=\"file:///etc/pki/rpm-gpg/tailscale.gpg\"" > /etc/yum.repos.d/tailscale.repo'
+
+# Update all existing packages
+# dnf5 update -y
+
+# Install Niri, the scrollable-tiling window compositor
+# https://yalter.github.io/niri/
+dnf5 -y copr enable avengemedia/dms
+
+# Install my own layered packages
+dnf5 install -y \
+  git \
+  fish \
+  gvfs-nfs \
+  openssl \
+  wl-clipboard \
+  ffmpeg ffmpeg-libs ffmpegthumbnailer \
+  heif-pixbuf-loader intel-vaapi-driver libavcodec libheif \
+  libcamera libcamera-gstreamer libcamera-ipa libcamera-tools pipewire-plugin-libcamera \
+  1password 1password-cli \
+  tailscale \
+  waypipe \
+  htop \
+  alacritty \
+  niri dms
+
+dnf5 -y copr disable avengemedia/dms
+
+# Enable Tailscale service
+systemctl enable tailscaled
+
+echo "Done."
diff --git a/build_files/niri/cleanup.sh b/build_files/niri/cleanup.sh
new file mode 100755
index 0000000..72f3277
--- /dev/null
+++ b/build_files/niri/cleanup.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+
+set -ouex pipefail
+
+# Delete 1Password and Tailscale repos once packages are installed
+# so they don't end up in the final image, and don't raise an error if any of
+# these files does not exist when attempting to delete them.
+rm \
+  /etc/yum.repos.d/1password.repo \
+  /etc/yum.repos.d/tailscale.repo \
+  /etc/pki/rpm-gpg/1password.asc \
+  /etc/pki/rpm-gpg/tailscale.gpg \
+  2>&1
+
+# Or just disable:
+# dnf5 config-manager setopt 1password.enabled=0 tailscale-stable.enabled=0
+# sed -i 's/enabled=1/enabled=0/' \
+#   /etc/yum.repos.d/1password.repo \
+#   /etc/yum.repos.d/tailscale.repo \
+
+# Fedora Flatpak service is a part of the flatpak package, ensure it's overridden by moving to replace it at the end of the build.
+mv -f /usr/lib/systemd/system/flatpak-add-flathub-repos.service /usr/lib/systemd/system/flatpak-add-fedora-repos.service
+
+# Re-install all pre-installed (GNOME) applications from Flathub
+#flatpak install --reinstall flathub "$(flatpak list --app-runtime=org.fedoraproject.Platform --columns=application | tail -n +1 )"
+
+# ...and remove  the fedora flatpak remotes
+#flatpak remote-delete --force fedora
+#flatpak remote-delete --force fedora-testing
+
+# TODO: Add flathub remove, enable, and remove filter
+# TODO: Install core GNOME Flatpak apps
+# TODO: Install my own commonly used Flatpak apps
+# IDEA: Can I set certain dconf settings, like Ptyxis config, temperature settings, etc?
+# IDEA: Can I set certain Flatpak system defaults (ie. no read/write anywhere by default)
+
+# Remove dnf5 versionlocks
+dnf5 versionlock clear
+
+# Remove tmp files and everything in dirs that make bootc unhappy
+rm -rf /tmp/* || true
+rm -rf /usr/etc
+rm -rf /boot && mkdir /boot
+# Preserve cache mounts
+find /var/* -maxdepth 0 -type d \! -name cache \! -name log -exec rm -rf {} \;
+find /var/cache/* -maxdepth 0 -type d \! -name libdnf5 -exec rm -rf {} \;
+
+# Make sure /var/tmp is properly created
+mkdir -p /var/tmp
+chmod -R 1777 /var/tmp
+
+## Handle files that rpm-ostree would normally remove
+## Adapted from: https://github.com/hhd-dev/rechunk/blob/master/1_prune.sh#L33
+
+# if [ -f /etc/passwd ]; then
+#   out="$(grep -v 'root' /etc/passwd)"
+#
+#   if [[ ! -z "$out" ]]; then
+#     echo
+#     echo Appending the following passwd users to /usr/lib/passwd
+#     echo "${out}"
+#     echo "$out" >>/usr/lib/passwd
+#   fi
+# fi
+
+if [ -f /etc/group ]; then
+  out="$(grep -v 'root\|wheel' /etc/group)"
+
+  if [[ ! -z "$out" ]]; then
+    echo
+    echo Appending the following group entries to /usr/lib/group
+    echo "$out"
+    echo "$out" >>/usr/lib/group
+  fi
+fi
+
+if [ -f /etc/passwd ] || [ -f /etc/group ]; then
+  echo
+  echo "Warning: Make sure processed users and groups are from installed programs!"
+fi
+
+# # Create defaults for /etc/passwd, /etc/group
+# cat <<EOT >/etc/passwd
+# root:x:0:0:root:/root:/bin/bash
+# EOT
+# cat <<EOT >/etc/group
+# root:x:0:
+# wheel:x:10:
+# EOT
+
+# Extra lock files created by container processes that might cause issues
+rm -rf \
+  /etc/.pwd.lock \
+  /etc/passwd- \
+  /etc/group- \
+  /etc/shadow- \
+  /etc/gshadow- \
+  /etc/subuid- \
+  /etc/subgid- \
+  /.dockerenv
+
+# # Merge /usr/etc to /etc
+# # OSTree will error out if both dirs exist
+# # And rpm-ostree will be confused and use only one of them
+# if [ -d /usr/etc ]; then
+#   echo
+#   echo WARNING: FOUND /usr/etc. MERGING TO ETC FOR COMPATIBILITY
+#   echo EXPECT PERMISSIONS ISSUES ON THE MERGED PATHS
+#   echo The following files from /usr/etc will be merged to /etc:
+#   tree /usr/etc
+#
+#   echo
+#   rsync -aAX --numeric-ids --checksum --links /usr/etc/ /etc
+#   rm -rf /usr/etc
+# fi
+#
+# # Move /etc to /usr/etc
+# mv /etc /usr/
+
+# ...normal ublue-inspired steps continue.