Add accentor nix shell configs

programs/direnv/shells/accentor-api.nix

@@ -0,0 +1,29 @@
+let
+  pkgs = import <nixpkgs> {};
+in
+  pkgs.mkShell {
+    buildInputs = [
+      pkgs.ffmpeg
+      pkgs.postgresql
+      pkgs.ruby_2_7
+      pkgs.taglib
+      pkgs.zlib
+    ];
+    shellHook = ''
+      export PGDATA=$PWD/tmp/postgres_data
+      export PGHOST=$PWD/tmp/postgres
+      export PGDATABASE=postgres
+      export DATABASE_URL="postgresql:///postgres?host=$PGHOST"
+      if [ ! -d $PGHOST ]; then
+        mkdir -p $PGHOST
+      fi
+      if [ ! -d $PGDATA ]; then
+        echo 'Initializing postgresql database...'
+        initdb $PGDATA --auth=trust >/dev/null
+      fi
+      cat >"$PGDATA/postgresql.conf" <<HERE
+        listen_addresses = '''
+        unix_socket_directories = '$PGHOST'
+      HERE
+    '';
+  }

programs/direnv/shells/accentor-web.nix

@@ -0,0 +1,9 @@
+let
+  pkgs = import <nixpkgs> {};
+in
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.nodejs-12_x
+    pkgs.yarn
+  ];
+}