diff --git a/.containers-sugar.yaml b/.containers-sugar.yaml
index c6f0ac9..b306e38 100644
--- a/.containers-sugar.yaml
+++ b/.containers-sugar.yaml
@@ -3,6 +3,7 @@ compose-app: docker-compose
 env-file: .env
 defaults:
   group: {{ env.KXGR_GROUP }}
+  project-name: sugar-{{ env.KXGR_PROJECT_NAME }}
 service-groups:
   - name: group1
     project-name: project1  # optional
@@ -38,3 +39,13 @@ service-groups:
         - name: service1-2
         - name: service2-1
         - name: service2-2
+
+  - name: group-defaults
+    compose-path:
+      - tests/containers/group1/compose.yaml
+    env-file: .env
+    services:
+      # default: service1-1,service1-2
+      available:
+        - name: service1-1
+        - name: service1-2
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 8cd1911..4a11490 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -19,6 +19,9 @@ jobs:
       group: ci-tests-${{ matrix.python_version }}-${{ github.ref }}
       cancel-in-progress: true
 
+    env:
+      KXGR_PROJECT_NAME: ${{ matrix.python_version }}-${{ github.ref }}
+
     steps:
     - uses: actions/checkout@v3
 
diff --git a/Makefile b/Makefile
index 8a30a2c..228629a 100644
--- a/Makefile
+++ b/Makefile
@@ -55,82 +55,124 @@ build:
 	poetry build
 
 
-.ONESHELL:
-.PHONY: smoke-tests
-smoke-tests:
-	# note: don't change the order of the commands heres
+# SMOKE TESTS
 
+.ONESHELL:
+.PHONY: docker-killall
+docker-killall:
 	set -ex
+	docker kill `docker ps -q` || true
+	set +ex
 
-	# test default group option
-	kxgr build --verbose
-
+.ONESHELL:
+.PHONY: smoke-test-group-1
+smoke-test-group-1: docker-killall
+	set -ex
 	# group 1
-	kxgr --help
-	kxgr --version
-	kxgr build --verbose --group group1 --all
-	kxgr build --verbose --group group1
-	kxgr build --verbose --group group1 --services service1-1
-	kxgr pull --verbose --group group1 --all
-	kxgr pull --verbose --group group1
-	kxgr pull --verbose --group group1 --services service1-1
-	kxgr ext start --verbose --group group1 --all --options -d
-	kxgr ext restart --verbose --group group1 --all --options -d
-	kxgr exec --verbose --group group1 --service service1-1 --options -T --cmd env
-	kxgr stop --verbose --group group1 --all
-	kxgr run --verbose --group group1 --service service1-1 --options -T --cmd env
-	kxgr down --verbose --group group1
+	sugar build --verbose
+	sugar build --verbose --group group1 --all
+	sugar build --verbose --group group1
+	sugar build --verbose --group group1 --services service1-1
+	sugar pull --verbose --group group1 --all
+	sugar pull --verbose --group group1
+	sugar pull --verbose --group group1 --services service1-1
+	sugar ext start --verbose --group group1 --all --options -d
+	sugar ext restart --verbose --group group1 --all --options -d
+	sugar exec --verbose --group group1 --service service1-1 --options -T --cmd env
+	sugar stop --verbose --group group1 --all
+	sugar run --verbose --group group1 --service service1-1 --options -T --cmd env
+	sugar down --verbose --group group1
+	set +ex
 
+.ONESHELL:
+.PHONY: smoke-test-group-2
+smoke-test-group-2: docker-killall
+	set -ex
 	# group 2
-	kxgr build --verbose --group group2 --all
-	kxgr build --verbose --group group2
-	kxgr build --verbose --group group2 --services service2-1
-	kxgr pull --verbose --group group2 --all
-	kxgr pull --verbose --group group2
-	kxgr pull --verbose --group group2 --services service2-1
-	kxgr ext start --verbose --group group2 --all --options -d
-	kxgr ext restart --verbose --group group2 --all --options -d
-	kxgr exec --verbose --group group2 --service service2-1 --options -T --cmd env
-	kxgr stop --verbose --group group2 --all
-	kxgr run --verbose --group group2 --service service2-1 --options -T --cmd env
-	kxgr down --verbose --group group2
+	sugar build --verbose --group group2 --all
+	sugar build --verbose --group group2
+	sugar build --verbose --group group2 --services service2-1
+	sugar pull --verbose --group group2 --all
+	sugar pull --verbose --group group2
+	sugar pull --verbose --group group2 --services service2-1
+	sugar ext start --verbose --group group2 --all --options -d
+	sugar ext restart --verbose --group group2 --all --options -d
+	sugar exec --verbose --group group2 --service service2-1 --options -T --cmd env
+	sugar stop --verbose --group group2 --all
+	sugar run --verbose --group group2 --service service2-1 --options -T --cmd env
+	sugar down --verbose --group group2
+	set +ex
 
+.ONESHELL:
+.PHONY: smoke-test-group-mix
+smoke-test-group-mix: docker-killall
+	set -ex
 	# group mix
-	kxgr build --verbose --group group-mix --all
-	kxgr build --verbose --group group-mix
-	kxgr build --verbose --group group-mix --services service1-1,service2-1
-	kxgr pull --verbose --group group-mix --all
-	kxgr pull --verbose --group group-mix
-	kxgr pull --verbose --group group-mix --services service1-1,service2-1
-	kxgr ext start --verbose --group group-mix --all --options -d
-	kxgr ext restart --verbose --group group-mix --all --options -d
-	kxgr exec --verbose --group group-mix --service service2-1 --options -T --cmd env
-	kxgr stop --verbose --group group-mix --all
-	kxgr run --verbose --group group-mix --service service2-1 --options -T --cmd env
-	kxgr down --verbose --group group-mix
+	sugar build --verbose --group group-mix --all
+	sugar build --verbose --group group-mix
+	sugar build --verbose --group group-mix --services service1-1,service2-1
+	sugar pull --verbose --group group-mix --all
+	sugar pull --verbose --group group-mix
+	sugar pull --verbose --group group-mix --services service1-1,service2-1
+	sugar ext start --verbose --group group-mix --all --options -d
+	sugar ext restart --verbose --group group-mix --all --options -d
+	sugar exec --verbose --group group-mix --service service2-1 --options -T --cmd env
+	sugar stop --verbose --group group-mix --all
+	sugar run --verbose --group group-mix --service service2-1 --options -T --cmd env
+	sugar down --verbose --group group-mix
+	set +ex
 
+.ONESHELL:
+.PHONY: smoke-test-main
+smoke-test-main: docker-killall
+	set -ex
 	# general tests main profile/plugins
-	kxgr build --verbose --group group1
-	kxgr config --verbose --group group1
-	kxgr create --verbose --group group1
-	kxgr ext start --verbose --group group1 --options -d
-	kxgr ext restart --verbose --group group1 --options -d
-	kxgr exec --verbose --group group1 --service service1-1 --options -T --cmd env
-	kxgr images --verbose --group group1
-	kxgr logs --verbose --group group1
-	kxgr port --verbose --group group1
-	kxgr ps --verbose --group group1
-	kxgr pull --verbose --group group1
-	kxgr push --verbose --group group1
-	kxgr run --verbose --group group1 --service service1-1 --options -T --cmd env
-	kxgr top --verbose --group group1
-	kxgr up --verbose --group group1 --options -d
-	kxgr version --verbose --group group1
-	kxgr events --verbose --group group1 --options --json --dry-run
+	sugar build --verbose --group group1
+	sugar config --verbose --group group1
+	sugar create --verbose --group group1
+	sugar ext start --verbose --group group1 --options -d
+	sugar ext restart --verbose --group group1 --options -d
+	sugar exec --verbose --group group1 --service service1-1 --options -T --cmd env
+	sugar images --verbose --group group1
+	sugar logs --verbose --group group1
+	sugar port --verbose --group group1
+	sugar ps --verbose --group group1
+	sugar pull --verbose --group group1
+	sugar push --verbose --group group1
+	sugar run --verbose --group group1 --service service1-1 --options -T --cmd env
+	sugar top --verbose --group group1
+	sugar up --verbose --group group1 --options -d
+	sugar version --verbose --group group1
+	sugar events --verbose --group group1 --options --json --dry-run
+	set +ex
+
+
+.ONESHELL:
+.PHONY: smoke-test-defaults
+smoke-test-defaults: docker-killall
+	$(MAKE) docker-killall
+	set -ex
+	export KXGR_PROJECT_NAME="test-`python -c 'from uuid import uuid4; print(uuid4().hex[:7])'`"
+	echo $$KXGR_PROJECT_NAME
+	sugar build --verbose --group group-defaults
+	sugar ext restart --verbose --group group-defaults --options -d
+	docker ps|grep $$KXGR_PROJECT_NAME
+	set +ex
+
+.ONESHELL:
+.PHONY: smoke-final-tests
+smoke-final-tests: docker-killall
 	# keep these ones at the end
-	kxgr pause --verbose --group group1
-	kxgr unpause --verbose --group group1
-	kxgr kill --verbose --group group1
-	kxgr stop --verbose --group group1
-	kxgr rm --verbose --group group1 --options --force
-	kxgr down --verbose --group group1
+	sugar ext restart --verbose --group group-defaults --options -d
+	sugar pause --verbose --group group1
+	sugar unpause --verbose --group group1
+	sugar kill --verbose --group group1
+	sugar stop --verbose --group group1
+	sugar rm --verbose --group group1 --options --force
+	sugar down --verbose --group group1
+
+.ONESHELL:
+.PHONY: smoke-tests
+smoke-tests: smoke-test-group-1 smoke-test-group-2 smoke-test-group-mix smoke-test-main smoke-test-defaults smoke-final-tests
+	sugar --help
+	sugar --version
diff --git a/README.md b/README.md
index 6d49177..dc688f6 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ These commands are available in the main profile/plugin, so
 you don't need to specify any extra parameter to access them.
 
 For extra commands, we are gathering them into a profile/plugin called
-`ext`, so you can access them using something like: `kxgr ext restart`.
+`ext`, so you can access them using something like: `sugar ext restart`.
 
 The current available **ext** commands are:
 
@@ -100,30 +100,30 @@ service-groups:
         - name: service1
 ```
 
-**NOTE**: containers-sugar has an convenient alias `kxgr` that helps to
+**NOTE**: containers-sugar has an convenient alias `sugar` that helps to
 keep the command line shorter, where **k** stands for *containers*,
 **x** stands for *su* (*shu* sound), and **gr** stands for *gar*.
-In another words, you can use `containers-sugar` or `kxgr` CLI.
+In another words, you can use `containers-sugar` or `sugar` CLI.
 
 Some examples of how to use it:
 
 * build the defaults services (service1,service3) for group1:
-  `kxgr build --group group1`
+  `sugar build --group group1`
 
 * build the all services (there is no default service defined) for group2:
-  `kxgr build --group group2`
+  `sugar build --group group2`
 
 * build all services (ignore default) for group1:
-  `kxgr build --group group1 --all`
+  `sugar build --group group1 --all`
 
 * start the default services for group1:
-  `kxgr ext start --group group1`
+  `sugar ext start --group group1`
 
 * restart all services (ignore defaults) for group1:
-  `kxgr ext restart --group group1 --all`
+  `sugar ext restart --group group1 --all`
 
 * restart service1 and service2 for group1:
-  `kxgr ext restart --group group1 --services service1,service2`
+  `sugar ext restart --group group1 --services service1,service2`
 
 
 **NOTE**: If you use: ```default: group: {{ env.ENV }}```, you don't need to
diff --git a/containers_sugar/cli.py b/containers_sugar/cli.py
index 5d9c61a..d425a6c 100644
--- a/containers_sugar/cli.py
+++ b/containers_sugar/cli.py
@@ -13,7 +13,7 @@ def _get_args():
     parser = argparse.ArgumentParser(
         prog='containers-sugar',
         description=(
-            'containers-sugar (or kxgr) is a tool that help you to organize'
+            'containers-sugar (or sugar) is a tool that help you to organize'
             "and simplify your containers' stack."
         ),
         epilog=(
diff --git a/containers_sugar/sugar.py b/containers_sugar/sugar.py
index 5f6fb2d..54f30e1 100644
--- a/containers_sugar/sugar.py
+++ b/containers_sugar/sugar.py
@@ -136,8 +136,21 @@ def _filter_service_group(self):
         else:
             group_name = self.args.get('service_group')
 
+        default_project_name = self.defaults.get('project-name')
+
         for g in groups:
             if g['name'] == group_name:
+                if default_project_name and 'project-name' not in g:
+                    # just use default value if "project-name" is not set
+                    g['project-name'] = default_project_name
+                if not g.get('services', {}).get('default'):
+                    # if default is not given or it is empty or null,
+                    # use as default all the services available
+                    default_services = [
+                        service['name']
+                        for service in g.get('services', {}).get('available')
+                    ]
+                    g['services']['default'] = ','.join(default_services)
                 self.service_group = g
                 return