diff --git a/README.md b/README.md
index 0918daf..d60706d 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,8 @@ On remote server where applications will be deployed:
 ```bash
 uv tool install odoo-venv
 uv tool install odoo-addons-path
+uv tool install click-odoo-contrib
+uv tool install git-aggregator
 ```
 
 Sample configuration file:
diff --git a/SPEC.md b/SPEC.md
index 098e7b1..4402233 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -140,7 +140,7 @@ deploy [--config FILE] configure <instance_name> [<ssh_host>] [<repo_url>] [--ty
 
    - Unit file destination: `~/.config/systemd/user/<instance_name>.service`
    - Template variables per type:
-     - **`odoo`**: `instance_name`, `instance_path`, `venv_path`, `addons_path`
+     - **`odoo`**: `instance_name`, `instance_path`, `venv_path`, `odoo_addons_path`
      - **`python`**: `instance_name`, `instance_path`, `venv_path`, `exec_start`
      - **`service`**: `instance_name`, `instance_path`, `exec_start`
    - After writing the unit file, run:
@@ -354,7 +354,7 @@ odoo-myproject-production:
   db: myproject                           # Odoo only; defaults to instance_name if omitted
 
   # service / python only
-  exec_start: myapp.main:app              # module path for python; verbatim for service
+  exec_start: python -m myapp.main:app    # `python -m module path` or `python file.py` or `fastapi entry` for python; verbatim for service
   build: npm ci && npm run build          # service only
 
   # Hooks (update command)
@@ -395,9 +395,9 @@ After=network.target postgresql.service
 [Service]
 Type=simple
 WorkingDirectory={{ instance_path }}
-ExecStart={{ venv_path }}/bin/python {{ instance_path }}/odoo-bin \
+ExecStart={{ venv_path }}/bin/python {{ venv_path }}/bin/odoo \
     --config {{ instance_path }}/config/odoo.conf \
-    --addons-path {{ addons_path }}
+    --addons-path $({{ odoo_addons_path }} {{ instance_path }})
 Restart=on-failure
 RestartSec=5s
 
@@ -415,7 +415,7 @@ After=network.target
 [Service]
 Type=simple
 WorkingDirectory={{ instance_path }}
-ExecStart={{ venv_path }}/bin/python -m {{ exec_start }}
+ExecStart={{ venv_path }}/bin/{{ exec_start }}
 Restart=on-failure
 RestartSec=5s
 
@@ -503,7 +503,8 @@ The following tools must be pre-installed on the target host:
 | `odoo-venv`       | `odoo` deployments   |
 | `odoo-addons-path`| `odoo` deployments   |
 | `uv`              | `python` deployments |
-| `click-odoo-upgrade` | `odoo` venv (not a local dep of `deploy`) |
+| `click-odoo-contrib` | `odoo` venv (not a local dep of `deploy`) |
+| `git-aggregator`  | `odoo` deployments   |
 
 For `service` deployments, any additional runtime or toolchain (Node.js, Ruby, Rust, etc.) must
 also be pre-installed; `deploy` only orchestrates `git pull`, the `build` command, and systemd
diff --git a/deploy/command/configure.py b/deploy/command/configure.py
index a72d16e..b4aca2a 100644
--- a/deploy/command/configure.py
+++ b/deploy/command/configure.py
@@ -4,7 +4,6 @@
 
 import click
 
-from deploy.utils.addons import get_addons_path
 from deploy.utils.config import load_config, resolve_options
 from deploy.utils.executor import Executor, ExecutorError
 from deploy.utils.render import render_unit
@@ -79,7 +78,8 @@ def configure(  # noqa: C901
         raise click.ClickException(msg)
 
     executor = Executor(eff_ssh_host, ctx.obj["verbose"], ssh_port=eff_ssh_port)
-    instance_path = f"$HOME/{instance_name}"
+    home_dir = executor.capture("echo $HOME")
+    instance_path = f"{home_dir}/{instance_name}"
 
     # Step 2: Clone repository
     if _is_git_repo(executor, instance_path):
@@ -94,14 +94,16 @@ def configure(  # noqa: C901
         except ExecutorError as exc:
             msg = f"Git clone failed: {exc}"
             raise click.ClickException(msg) from exc
+    executor.run(
+        "if [ -f addons/repos.yaml ]; then cd addons/ && gitaggregate -c repos.yaml; fi",
+        cwd=instance_path,
+    )
 
     # Step 3: Set up environment
     click.echo(f"Setting up {eff_type} environment …")
-    addons_path: str | None = None
     try:
         if eff_type == "odoo":
             setup_odoo_venv(executor, instance_path)
-            addons_path = get_addons_path(executor, instance_path)
         elif eff_type == "python":
             setup_python_venv(executor, instance_path, force=force)
         else:  # service
@@ -116,7 +118,6 @@ def configure(  # noqa: C901
     # Step 4: Install systemd unit
     click.echo("Installing systemd unit …")
     venv_path = f"{instance_path}/.venv"
-    exec_start: str = opts.get("exec_start", "")
 
     template_vars: dict[str, Any] = {
         "instance_name": instance_name,
@@ -124,11 +125,16 @@ def configure(  # noqa: C901
     }
     if eff_type == "odoo":
         template_vars["venv_path"] = venv_path
-        template_vars["addons_path"] = addons_path
-    elif eff_type == "python":
-        template_vars["venv_path"] = venv_path
-        template_vars["exec_start"] = exec_start
+        odoo_addons_path = executor.capture("which odoo-addons-path")
+        template_vars["odoo_addons_path"] = odoo_addons_path
     else:
+        exec_start: str = opts.get("exec_start", "")
+        if not exec_start:
+            msg = "exec_start is required for service or python type."
+            msg += " Set it in deploy.yml."
+            raise click.ClickException(msg)
+        if eff_type == "python":
+            template_vars["venv_path"] = venv_path
         template_vars["exec_start"] = exec_start
 
     try:
diff --git a/deploy/command/update.py b/deploy/command/update.py
index 2a9d064..56c40c3 100644
--- a/deploy/command/update.py
+++ b/deploy/command/update.py
@@ -69,7 +69,8 @@ def update(  # noqa: C901
     hooks: dict = opts.get("hooks", {})
 
     executor = Executor(eff_ssh_host, ctx.obj["verbose"], ssh_port=eff_ssh_port)
-    instance_path = f"$HOME/{instance_name}"
+    home_dir = executor.capture("echo $HOME")
+    instance_path = f"{home_dir}/{instance_name}"
 
     def run_hooks(hook_name: str) -> bool:
         """Execute all commands for *hook_name*. Returns True if all succeeded."""
@@ -116,9 +117,10 @@ def run_hooks(hook_name: str) -> bool:
     try:
         if eff_type == "odoo":
             executor.run(
-                "if [ -e requirements.txt ]; then uv pip install -r requirements.txt; fi",
+                "if [ -f addons/repos.yaml ]; then cd addons/ && gitaggregate -c repos.yaml; fi",
                 cwd=instance_path,
             )
+            executor.run("odoo-venv update .venv --backup", cwd=instance_path)
         elif eff_type == "python":
             setup_python_deps(executor, instance_path)
         else:  # service
diff --git a/deploy/templates/odoo.service.j2 b/deploy/templates/odoo.service.j2
index de13add..7f39219 100644
--- a/deploy/templates/odoo.service.j2
+++ b/deploy/templates/odoo.service.j2
@@ -5,9 +5,9 @@ After=network.target postgresql.service
 [Service]
 Type=simple
 WorkingDirectory={{ instance_path }}
-ExecStart={{ venv_path }}/bin/python {{ instance_path }}/odoo-bin \
+ExecStart={{ venv_path }}/bin/python {{ venv_path }}/bin/odoo \
     --config {{ instance_path }}/config/odoo.conf \
-    --addons-path {{ addons_path }}
+    --addons-path $({{ odoo_addons_path }} {{ instance_path }})
 Restart=on-failure
 RestartSec=5s
 
diff --git a/deploy/templates/python.service.j2 b/deploy/templates/python.service.j2
index 5e6672f..8d981d5 100644
--- a/deploy/templates/python.service.j2
+++ b/deploy/templates/python.service.j2
@@ -5,7 +5,7 @@ After=network.target
 [Service]
 Type=simple
 WorkingDirectory={{ instance_path }}
-ExecStart={{ venv_path }}/bin/python -m {{ exec_start }}
+ExecStart={{ venv_path }}/bin/{{ exec_start }}
 Restart=on-failure
 RestartSec=5s
 
diff --git a/deploy/utils/venv.py b/deploy/utils/venv.py
index 1f22aef..524e452 100644
--- a/deploy/utils/venv.py
+++ b/deploy/utils/venv.py
@@ -6,10 +6,9 @@
 def setup_odoo_venv(executor: Executor, instance_path: str) -> None:
     """Create or update an Odoo virtual environment using ``odoo-venv``."""
     executor.run(
-        f"odoo-venv create --project-dir {instance_path}",
+        f"odoo-venv create --project-dir {instance_path} --preset project",
         cwd=instance_path,
     )
-    executor.run("uv pip install click-odoo-contrib", cwd=instance_path)
 
 
 def setup_python_venv(executor: Executor, instance_path: str, force: bool = False) -> None: