diff --git a/lemmy-docker.nix b/lemmy-docker.nix
index 44af331..6f0ae74 100644
--- a/lemmy-docker.nix
+++ b/lemmy-docker.nix
@@ -8,14 +8,14 @@ let
 
   lemmyDockerImage = { hostname, lemmyDockerImage, lemmyUiDockerImage
     , nginxCfgFile, pictrsApiKey, pictrsDockerImage, port, postgresDockerImage
-    , postgresPasswd, smtpServer, stateDirectory, ... }:
+    , postgresCfg, postgresPasswd, smtpServer, stateDirectory, ... }:
     let
       lemmyCfgFile =
         lemmyCfg { inherit hostname postgresPasswd pictrsApiKey smtpServer; };
       lemmyDockerComposeCfgDir = lemmyDockerComposeCfg {
         inherit hostname port lemmyCfgFile nginxCfgFile pictrsApiKey
           stateDirectory postgresPasswd lemmyDockerImage lemmyUiDockerImage
-          pictrsDockerImage postgresDockerImage;
+          pictrsDockerImage postgresDockerImage postgresCfg;
       };
     in pkgs.stdenv.mkDerivation {
       name = "lemmy-docker-image";
@@ -110,9 +110,43 @@ let
       };
     });
 
+  postgresCfg = pkgs.writeText "lemmy-postgres.conf" ''
+    # DB Version: 15
+    # OS Type: linux
+    # DB Type: web
+    # Total Memory (RAM): 8 GB
+    # CPUs num: 4
+    # Data Storage: ssd
+
+    max_connections = 200
+    shared_buffers = 2GB
+    effective_cache_size = 6GB
+    maintenance_work_mem = 512MB
+    checkpoint_completion_target = 0.9
+    checkpoint_timeout = 86400
+    wal_buffers = 16MB
+    default_statistics_target = 100
+    random_page_cost = 1.1
+    effective_io_concurrency = 200
+    work_mem = 5242kB
+    min_wal_size = 1GB
+    max_wal_size = 30GB
+    max_worker_processes = 4
+    max_parallel_workers_per_gather = 2
+    max_parallel_workers = 4
+    max_parallel_maintenance_workers = 2
+
+    # Other custom params
+    temp_file_size=1GB
+    synchronous_commit=off
+    # This one shouldn't be on regularly, because DB migrations often take a long time
+    # statement_timeout = 10000
+  '';
+
   lemmyDockerComposeCfg = { hostname, port, lemmyCfgFile, nginxCfgFile
     , pictrsApiKey, stateDirectory, postgresPasswd, lemmyDockerImage
-    , lemmyUiDockerImage, pictrsDockerImage, postgresDockerImage, ... }:
+    , lemmyUiDockerImage, pictrsDockerImage, postgresCfg, postgresDockerImage
+    , ... }:
     let
       defaultLogging = {
         driver = "json-file";
@@ -258,7 +292,7 @@ in {
             postgresDockerImage = cfg.docker-images.postgres;
             stateDirectory = cfg.state-directory;
             smtpServer = cfg.smtp-server;
-            inherit postgresPasswd pictrsApiKey nginxCfgFile;
+            inherit postgresPasswd pictrsApiKey nginxCfgFile postgresCfg;
           };
         in "${image}";
         autoStart = true;