diff --git a/docker/minecraft/docker-compose.yml b/docker/minecraft/docker-compose.yml
index 7d65b94..edd0d0d 100644
--- a/docker/minecraft/docker-compose.yml
+++ b/docker/minecraft/docker-compose.yml
@@ -8,32 +8,35 @@ services:
     ports:
       - "25565:25565"
     environment:
-      EULA: "TRUE"
-      MEMORY: ${MEMORY:-"6G"}
-      TZ: "Europe/Madrid"
-      VERSION: 1.21.1
-      ENABLE_ROLLING_LOGS: true
-      USE_AIKAR_FLAGS: true
-      MOTD: "Huesoperrers Minecraft Episodio 3: La venganza de los huesos"
-      MAX_PLAYERS: 10
-      MAX_WORLD_SIZE: 10000
-      SEED: huesoperrers3
-      MODE: survival
-      ONLINE_MODE: false
-      ALLOW_FLIGHT: true
-      SERVER_NAME: Huesoperrers and co.
-      PLAYER_IDLE_TIMEOUT: 15
-      STOP_SERVER_ANNOUNCE_DELAY: 30
+      EULA: ${EULA:-TRUE}
+      MEMORY: ${MEMORY:-8G}
+      TZ: ${TZ:-Europe/Madrid}
+      VERSION: ${VERSION:-1.21.1}
+      ENABLE_ROLLING_LOGS: ${ENABLE_ROLLING_LOGS:-true}
+      USE_AIKAR_FLAGS: ${USE_AIKAR_FLAGS:-false}
+      MOTD: "${MOTD:-Huesoperrers Minecraft Episodio 3: La venganza de los huesos}"
+      MAX_PLAYERS: ${MAX_PLAYERS:-10}
+      MAX_WORLD_SIZE: ${MAX_WORLD_SIZE:-10000}
+      SEED: ${SEED:-huesoperrers3test}
+      MODE: ${MODE:-survival}
+      ONLINE_MODE: ${ONLINE_MODE:-false}
+      ALLOW_FLIGHT: ${ALLOW_FLIGHT:-true}
+      SERVER_NAME: "${SERVER_NAME:-Huesoperrers and co.}"
+      PLAYER_IDLE_TIMEOUT: ${PLAYER_IDLE_TIMEOUT:-15}
+      STOP_SERVER_ANNOUNCE_DELAY: ${STOP_SERVER_ANNOUNCE_DELAY:-30}
       OPS: ${OPS:-robosap1ens,commandkatt,Malva25}
-      SYNCHRONIZE: true
-      MERGE: true
-      ENFORCE_WHITELIST: true
-      ENABLE_RCON: false
-      MAX_TICK_TIME: -1
+      SYNCHRONIZE: ${SYNCHRONIZE:-true}
+      MERGE: ${MERGE:-true}
+      ENFORCE_WHITELIST: ${ENFORCE_WHITELIST:-true}
+      USE_MEOWICE_GRAALVM_FLAGS: ${USE_MEOWICE_GRAALVM_FLAGS:-true}
+      ENABLE_RCON: ${ENABLE_RCON:-false}
+      MAX_TICK_TIME: ${MAX_TICK_TIME:--1}
       USER_API_PROVIDER: ${USER_API_PROVIDER:-playerdb}
       DIFFICULTY: ${DIFFICULTY:-normal}
-      ENABLE_AUTOPAUSE: true
-      DEBUG_AUTOPAUSE: false
-      TYPE: NEOFORGE
+      ENABLE_AUTOPAUSE: ${ENABLE_AUTOPAUSE:-true}
+      DEBUG_AUTOPAUSE: ${DEBUG_AUTOPAUSE:-false}
+      TYPE: ${TYPE:-NEOFORGE}
+      NEOFORGE_VERSION: ${NEOFORGE_VERSION:-21.1.216}
+      DEBUG_MEMORY: ${DEBUG_MEMORY:-false}
     volumes:
       - ${MC_DATA_DIR:-/mnt/zeruel/nas1/shared/mc3}:/data
diff --git a/docker/minecraft/sample.env b/docker/minecraft/sample.env
new file mode 100644
index 0000000..da36d93
--- /dev/null
+++ b/docker/minecraft/sample.env
@@ -0,0 +1,30 @@
+# Minecraft Server Configuration
+EULA=TRUE
+MEMORY=8G
+TZ=Europe/Madrid
+VERSION=1.21.1
+ENABLE_ROLLING_LOGS=true
+USE_AIKAR_FLAGS=true
+MOTD=Huesoperrers Minecraft Episodio 3: La venganza de los huesos
+MAX_PLAYERS=10
+MAX_WORLD_SIZE=10000
+SEED=huesoperrers3test
+MODE=survival
+ONLINE_MODE=false
+ALLOW_FLIGHT=true
+SERVER_NAME=Huesoperrers and co.
+PLAYER_IDLE_TIMEOUT=15
+STOP_SERVER_ANNOUNCE_DELAY=30
+OPS=robosap1ens,commandkatt,Malva25
+SYNCHRONIZE=true
+MERGE=true
+ENFORCE_WHITELIST=true
+ENABLE_RCON=false
+MAX_TICK_TIME=-1
+USER_API_PROVIDER=playerdb
+DIFFICULTY=normal
+ENABLE_AUTOPAUSE=true
+DEBUG_AUTOPAUSE=false
+TYPE=NEOFORGE
+NEOFORGE_VERSION=21.1.216
+MC_DATA_DIR=/mnt/zeruel/nas1/shared/mc3