diff --git a/.gitea/workflows/container.yaml b/.gitea/workflows/container.yaml
new file mode 100644
index 0000000..e48b3fd
--- /dev/null
+++ b/.gitea/workflows/container.yaml
@@ -0,0 +1,12 @@
+name: Build Multiarch Container Image
+on: [push]
+jobs:
+  call-reusable-workflow:
+    uses: container/multiarch-build-workflow/.gitea/workflows/build.yaml@main
+    with:
+      repository: ${{ gitea.repository }}
+      ref_name: ${{ gitea.ref_name }}
+      sha: ${{ gitea.sha }}
+      registry_url: ${{ secrets.REGISTRY_URL }}
+      registry_user: ${{ secrets.REGISTRY_USER }}
+      registry_pw: ${{ secrets.REGISTRY_PW }}
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index 2f4691d..0000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-variables:
-  CONTAINER_NAME: thallian/minecraft
-
-build:
-  stage: build
-  image:
-    name: gcr.io/kaniko-project/executor:debug
-    entrypoint: [""]
-  script:
-    - mkdir -p /kaniko/.docker
-    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$(printf "%s:%s" "$CI_REGISTRY_USER" "$CI_REGISTRY_PASSWORD" | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
-    - >-
-      /kaniko/executor
-      --context "$CI_PROJECT_DIR"
-      --dockerfile "$CI_PROJECT_DIR/Dockerfile"
-      --destination "$CONTAINER_NAME:$CI_COMMIT_SHA"
-      --destination "$CONTAINER_NAME:$CI_COMMIT_REF_NAME"
-      --destination "$CONTAINER_NAME:latest"
diff --git a/Dockerfile b/Containerfile
similarity index 69%
rename from Dockerfile
rename to Containerfile
index da27163..7e7f3a2 100644
--- a/Dockerfile
+++ b/Containerfile
@@ -1,19 +1,19 @@
-FROM docker.io/thallian/confd-env:latest
+FROM docker.io/thallian/confd-env:3.20-3.1.6.2
 
 RUN addgroup minecraft -g 2222
 RUN adduser -u 2222 -h /var/lib/minecraft -D -G minecraft minecraft
 
-ENV VERSION=1.19
-ENV SERIAL=43
-ENV SHA256_SUM=05d007a2a3b6933f1e44b0064cbc46358b03e155e0752c22eade84ad21f70b7e
+ENV VERSION=1.21
+ENV SERIAL=124
+ENV SHA256_SUM=0620f678aeb1581a20c191621b427c10b4f0d86e18bf04955fdc44ff9bdc758f
 RUN wget -O /var/lib/minecraft/paper.jar \
-	https://papermc.io/api/v2/projects/paper/versions/$VERSION/builds/$SERIAL/downloads/paper-$VERSION-$SERIAL.jar 
+  https://papermc.io/api/v2/projects/paper/versions/$VERSION/builds/$SERIAL/downloads/paper-$VERSION-$SERIAL.jar 
 
 RUN echo "$SHA256_SUM  /var/lib/minecraft/paper.jar" | sha256sum -c - || exit 1
 
 RUN apk add --no-cache \
-    openssl \
-	openjdk17-jre-headless
+  openssl \
+  openjdk21-jre-headless
 
 ADD /rootfs /
 
diff --git a/README.md b/README.md
index ab43466..7e2d5a4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
-A [Minecraft](https://minecraft.net) server running on [Paper](https://papermc.io/).
+A [Minecraft](https://minecraft.net) server running on
+[Paper](https://papermc.io/).
 
 # Volumes
+
 - `/var/lib/minecraft/plugins`
 - `/var/lib/minecraft/world`
 - `/var/lib/minecraft/world_nether`
@@ -11,55 +13,71 @@ A [Minecraft](https://minecraft.net) server running on [Paper](https://papermc.i
 - `/var/lib/minecraft/banned-players.json`
 
 # Environment Variables
+
 ## SERVER_NAME
+
 The name of the server.
 
 ## MOTD
+
 Message of the day.
 
 ## LEVEL_SEED
-[Seed](http://minecraft.gamepedia.com/Seed_(level_generation)) for level generation.
+
+[Seed](http://minecraft.gamepedia.com/Seed_(level_generation)) for level
+generation.
 
 ## BUKKIT_CONNECTION_THROTTLE
+
 - default: 4000
 
-The delay before a client is allowed to connect again after a recent connection attempt in milliseconds.
-`0` disables the limit.
+The delay before a client is allowed to connect again after a recent connection
+attempt in milliseconds. `0` disables the limit.
 
 ## OP_PERMISSION_LEVEL
+
 - default: 4
 
 One of:
+
 - 1: Ops can bypass spawn protection.
-- 2: Ops can use /clear, /difficulty, /effect, /gamemode, /gamerule, /give, and /tp, and can edit command blocks.
+- 2: Ops can use /clear, /difficulty, /effect, /gamemode, /gamerule, /give, and
+  /tp, and can edit command blocks.
 - 3: Ops can use /ban, /deop, /kick, and /op.
 - 4: Ops can use /stop.
 
 ## ALLOW_NETHER
+
 - default: true
 
 Whether players can travel to the Nether.
 
 ## ALLOW_FLIGHT
+
 - default: false
 
-Allows users to use flight on your server while in Survival mode, if they have a mod that provides flight installed.
-No effect in Creative mode.
+Allows users to use flight on your server while in Survival mode, if they have a
+mod that provides flight installed. No effect in Creative mode.
 
 ## ANNOUNCE_PLAYER_ACHIEVEMENTS
+
 - default: true
 
 Whether there is a server announcment when a player gets an achievement.
 
 ## MAX_WORLDSIZE
+
 - default: 29999984
 
-This sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain.
+This sets the maximum possible size in blocks, expressed as a radius, that the
+world border can obtain.
 
 ## LEVEL_TYPE
+
 - default: DEFAULT
 
 One of:
+
 - DEFAULT: Standard world with hills, valleys, water, etc.
 - FLAT: A flat world with no features, meant for building.
 - LARGEBIOMES: Same as default but all biomes are larger.
@@ -67,105 +85,132 @@ One of:
 - CUSTOMIZED: Same as default unless generator-settings is set to a preset.
 
 ## MAX_BUILD_HEIGHT
+
 - default: 256
 
-The maximum height in which building is allowed. Terrain may still naturally generate above a low height limit.
+The maximum height in which building is allowed. Terrain may still naturally
+generate above a low height limit.
 
 ## SPAWN_NPCS
+
 - default: true
 
 Determines whether villagers will be spawned.
 
 ## SPAWN_ANIMALS
+
 - default: true
 
-Determines if [animals](http://minecraft.gamepedia.com/Mob#Passive) will be able to spawn.
+Determines if [animals](http://minecraft.gamepedia.com/Mob#Passive) will be able
+to spawn.
 
 ## SPAWN_MONSTERS
+
 - default: true
 
 Determines if monsters will be spawned.
 
 ## GENERATE_STRUCTURES
+
 - default: true
 
-Defines whether [structures](http://minecraft.gamepedia.com/Generated_structures) will be generated.
+Defines whether
+[structures](http://minecraft.gamepedia.com/Generated_structures) will be
+generated.
 
 ## WHITELIST
+
 - default: false
 
 Whether the whitelist is used.
 
 ## HARDCORE
+
 - default: false
 
 If set to true, players will be set to spectator mode if they die.
 
 ## PVP
+
 - default: true
 
 Whether PvP is enabled.
 
 ## DIFFICULTY
+
 - default: 2
 
-Defines the [difficulty](http://minecraft.gamepedia.com/Difficulty) of the server.
+Defines the [difficulty](http://minecraft.gamepedia.com/Difficulty) of the
+server.
 
 One of:
+
 - 0: Peaceful
 - 1: Easy
 - 2: Normal
 - 3: Hard
 
 ## GAMEMODE
+
 - default: 0
 
-Defines the [mode of gameplay](http://minecraft.gamepedia.com/Gameplay#Game_modes).
+Defines the
+[mode of gameplay](http://minecraft.gamepedia.com/Gameplay#Game_modes).
 
 One of:
+
 - 0: Survival
 - 1: Creative
 - 2: Adventure
 - 3: Spectator
 
 ## ONLINE_MODE
+
 - default: true
 
-Whether to authenticate players with the mojang database. Disable it when running behind bungeecord.
+Whether to authenticate players with the mojang database. Disable it when
+running behind bungeecord.
 
 ## PLAYER_IDLE_TIMEOUT
+
 - default: 0
 
-If non-zero, players are kicked from the server if they are idle for more than that many minutes.
+If non-zero, players are kicked from the server if they are idle for more than
+that many minutes.
 
 ## MAX_PLAYERS
+
 - default: 20
 
 The maximum number of players that can play on the server at the same time.
 
 ## VIEW_DISTANCE
+
 - default: 10
 
-Sets the amount of world data the server sends the client, measured in chunks in each direction of the player (radius, not diameter).
+Sets the amount of world data the server sends the client, measured in chunks in
+each direction of the player (radius, not diameter).
 
 ## BUNGEECORD
+
 - default: false
 
 Whether the server runs behind a bungeecord instance.
 
 ## MIN_RAM
-- default: 512M
-Minimal heapsize for the jvm.
+
+- default: 512M Minimal heapsize for the jvm.
 
 ## MAX_RAM
-- default: 512M
-Maximal heapsize for the jvm.
+
+- default: 512M Maximal heapsize for the jvm.
 
 # Ports
+
 - 25565
 
 # Capabilities
-- CHOWN
+
 - DAC_OVERRIDE
 - FOWNER
 - NET_BIND_SERVICE