rewrite parts of the script

lib.nix

@@ -1,6 +1,7 @@
 { pkgs }:
 let
   inherit (pkgs) lib;
+  runtime = ".compose";
 in
 {
   mkWrapper =
@@ -71,6 +72,7 @@ in
       ...
     }:
     let
+      runtimeDir = "${runtime}/${name}";
       merged_config =
         (
           if default_config then
@@ -113,15 +115,24 @@ in
         export PATH=${package}/bin:${pkgs.coreutils}/bin
         POSTGRES_RUN_INITIAL_SCRIPT="false"
         if [[ ! -d "${data_dir}" ]]; then
-          echo "Database directory does not exist. Initializing"
+          
+          initdb -D ${data_dir} --no-instructions
           POSTGRES_RUN_INITIAL_SCRIPT="true"
-          ${package}/bin/initdb -D ${data_dir} --no-instructions
+          echo
+          echo "PostgreSQL initdb process completed"
+          echo
         fi
         cp ${configFile} ${data_dir}/postgresql.conf
         if [[ "$POSTGRES_RUN_INITIAL_SCRIPT" == "true" ]]; then
-          echo "Running initial script"
+          echo
+          echo "PostgreSQL is setting up the initial database"
+          echo
+          OLDPGHOST="$PGHOST"
+          PGHOST=${lib.escapeShellArg runtimeDir}
           pg_ctl -D "${data_dir}" -w start -o "-c unix_socket_directories=${data_dir} -c listen_addresses= -p ${builtins.toString port}"
           pg_ctl -D "${data_dir}" -m fast -w stop
+          PGHOST="$OLDPGHOST"
+          unset OLDPGHOST
         else 
           echo
           echo "Database directory exists. Skipping initialization"
@@ -135,7 +146,7 @@ in
         name = "run-postgres";
         text = ''
           set -euo pipefail
-          mkdir -p ${lib.escapeShellArg data_dir}
+          mkdir -p ${lib.escapeShellArg runtimeDir}
           ${setupScript}/bin/setup-postgres
           exec ${package}/bin/postgres -D${data_dir} 
         '';