diff --git a/aiida_project/commands/main.py b/aiida_project/commands/main.py
index fdcd450..5de45a8 100644
--- a/aiida_project/commands/main.py
+++ b/aiida_project/commands/main.py
@@ -59,16 +59,9 @@ def init(shell: Optional[ShellType] = None):
             default=detected_shell,
         )
 
-    if shell_str == "fish":
-        print(
-            "[bold red]Error:[/] `fish` is not yet supported. "
-            "If this is Julian: you better get to it 😜"  # Nhehehe
-        )
-        return
 
-    config.set_key("aiida_project_shell", shell_str)
+    config.write_key("aiida_project_shell", shell_str)
 
-    env_file_path = Path.home() / Path(f".{shell_str}rc")
 
     if "Created by `aiida-project init`" in env_file_path.read_text():
         print(
@@ -85,14 +78,11 @@ def init(shell: Optional[ShellType] = None):
                 f"\n# Created by `aiida-project init` on "
                 f"{datetime.now().strftime('%d/%m/%y %H:%M')}\n"
             )
-            handle.write(f"export $(grep -v '^#' {config.Config.env_file} | xargs)")
-            handle.write(CDA_FUNCTION)
-
-    config.set_key(
+    config.write_key("aiida_project_dir", config.aiida_project_dir.as_posix())
+    config.write_key(
         "aiida_venv_dir",
         os.environ.get("WORKON_HOME", config.aiida_venv_dir.as_posix()),
     )
-    config.set_key("aiida_project_dir", config.aiida_project_dir.as_posix())
     print("\n✨🚀 AiiDA-project has been initialised! 🚀✨\n")
     print("[bold blue]Info:[/] For the changes to take effect, run the following command:")
     print(f"\n    source {env_file_path.resolve()}\n")
@@ -121,6 +111,8 @@ def create(
     config = ProjectConfig()
     if config.is_not_initialised():
         return
+    else:
+        config = config.from_env_file()
 
     venv_path = config.aiida_venv_dir / Path(name)
     project_path = config.aiida_project_dir / Path(name)
diff --git a/aiida_project/config.py b/aiida_project/config.py
index ebcb90c..d10350a 100644
--- a/aiida_project/config.py
+++ b/aiida_project/config.py
@@ -28,8 +28,8 @@ class ShellType(str, Enum):
 class ProjectConfig(BaseSettings):
     """Configuration class for configuring `aiida-project`."""
 
-    aiida_venv_dir: Path = Path(Path.home(), ".aiida_venvs")
-    aiida_project_dir: Path = Path(Path.home(), "project")
+    aiida_venv_dir: Path = Path.home() / Path(".aiida_venvs")
+    aiida_project_dir: Path = Path.home() / Path("aiida_projects") # ? Make hidden?
     aiida_default_python_path: Optional[Path] = None
     aiida_project_structure: dict = DEFAULT_PROJECT_STRUCTURE
     aiida_project_shell: str = "bash"
@@ -44,10 +44,23 @@ def is_not_initialised(self):
             print("[bold blue]Info:[/bold blue] Please run `aiida-project init` to get started.")
             return True
 
-    def set_key(self, key, value):
+    @classmethod
+    def from_env_file(cls, env_path: Optional[Path] = None):
+        """Populate config instance from env file."""
+
+        if env_path is None:
+            env_path = Path.home() / Path(".aiida_project.env")
+        # ? Currently works only with default path of Config class...
+        config_dict = {k:v for k,v in dotenv.dotenv_values(env_path).items()}
+        config_instance = cls.parse_obj(config_dict)
+        return config_instance
+
+    # ? Renamed these methods, as they actually write to the env file, and we
+    # ? might implement a method that sets the key of the ProjectConfig class?
+    def write_key(self, key, value):
         dotenv.set_key(self.Config.env_file, key, value)
 
-    def get_key(self, key):
+    def read_key(self, key):
         return dotenv.get_key(key)