docs: add directory, write getting started guide

nix/shell.nix

@@ -1,4 +1,4 @@
-{ pkgs, lib }:
+{ pkgs }:
 let
   phpEnv = pkgs.php84.buildEnv {
     extensions = { enabled, all }: enabled ++ (with all; [ iconv mbstring pdo_mysql pdo_sqlite ]);
@@ -14,45 +14,4 @@ pkgs.mkShellNoCC {
     sql-formatter
     openssl
   ];
-
-  # Prepare dev environment with sqlite and config files
-  shellHook = ''
-    alias runDev='php -S localhost:1080 -d error_reporting=E_ALL -d display_errors=1 -t www/'
-
-    declare -a PROJECT_ROOT="$("${lib.getExe pkgs.git}" rev-parse --show-toplevel)"
-
-    mkdir -p "$PROJECT_ROOT/www/galleri/bilder/slideshow"
-    test -e "$PROJECT_ROOT/pvv.sqlite" || sqlite3 "$PROJECT_ROOT/pvv.sqlite" < "$PROJECT_ROOT/dist/sql/pvv_sqlite.sql"
-    test -e "$PROJECT_ROOT/config.php" || cp -v "$PROJECT_ROOT/dist/config.local.php" "$PROJECT_ROOT/config.php"
-
-    if [ ! -d "$PROJECT_ROOT/vendor" ] ; then
-      pushd "$PROJECT_ROOT"
-      composer install || exit $?
-
-      # Set up SimpleSAMLphp identity provider (for local testing)
-      install -m644 dist/simplesaml-dev/authsources.php -t vendor/simplesamlphp/simplesamlphp/config/
-      install -m644 dist/simplesaml-dev/config.php -t vendor/simplesamlphp/simplesamlphp/config/
-      install -m644 dist/simplesaml-dev/saml20-idp-remote.php -t vendor/simplesamlphp/simplesamlphp/metadata/
-      install -m644 dist/simplesaml-dev/saml20-idp-hosted.php -t vendor/simplesamlphp/simplesamlphp/metadata/
-      install -m644 dist/simplesaml-dev/saml20-sp-remote.php -t vendor/simplesamlphp/simplesamlphp/metadata/
-
-      # See session.phpsession.savepath in config.php
-      mkdir -p vendor/simplesamlphp/simplesamlphp/sessions/
-
-      openssl req \
-        -newkey rsa:4096 \
-        -new \
-        -x509 \
-        -days 3652 \
-        -nodes \
-        -out vendor/simplesamlphp/simplesamlphp/cert/localhost.crt \
-        -keyout vendor/simplesamlphp/simplesamlphp/cert/localhost.pem \
-        -subj "/C=NO/ST=Trondheim/L=Trondheim/O=Programvareverkstedet/CN=localhost"
-
-      cp dist/config.local.php config.php
-
-      ln -s ../vendor/simplesamlphp/simplesamlphp/public/ www/simplesaml
-      popd
-    fi
-  '';
 }