diff --git a/mx.ini b/mx.ini
new file mode 100644
index 00000000..1853395d
--- /dev/null
+++ b/mx.ini
@@ -0,0 +1,4 @@
+[settings]
+ignores =
+    plone.app.multilingual
+main-package = -e .[test]
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..00e902ab
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+-c https://dist.plone.org/release/6.1-dev/constraints.txt
diff --git a/tox.ini b/tox.ini
index c3cf1a27..4457cd28 100644
--- a/tox.ini
+++ b/tox.ini
@@ -74,9 +74,6 @@ commands =
 
 [testenv:test]
 description = run the distribution tests
-use_develop = true
-skip_install = false
-constrain_package_deps = true
 set_env =
     ROBOT_BROWSER=headlesschrome
 
@@ -88,6 +85,7 @@ set_env =
 #  """
 ##
 deps =
+    mxdev
     zope.testrunner
     -c https://dist.plone.org/release/6.1-dev/constraints.txt
 ##
@@ -95,6 +93,9 @@ deps =
 #  [tox]
 #  constraints_file = "https://my-server.com/constraints.txt"
 ##
+commands_pre =
+    mxdev -c mx.ini
+    pip install -rrequirements-mxdev.txt
 commands =
     zope-testrunner --all --test-path={toxinidir}/src -s plone.app.multilingual {posargs}
 extras =
@@ -111,9 +112,6 @@ extras =
 
 [testenv:coverage]
 description = get a test coverage report
-use_develop = true
-skip_install = false
-constrain_package_deps = true
 set_env =
     ROBOT_BROWSER=headlesschrome
 
@@ -128,6 +126,9 @@ deps =
     coverage
     zope.testrunner
     -c https://dist.plone.org/release/6.1-dev/constraints.txt
+commands_pre =
+    mxdev -c mx.ini
+    pip install -rrequirements-mxdev.txt
 commands =
     coverage run --branch --source plone.app.multilingual {envbindir}/zope-testrunner --quiet --all --test-path={toxinidir}/src -s plone.app.multilingual {posargs}
     coverage report -m --format markdown
@@ -154,8 +155,6 @@ commands =
 
 [testenv:circular]
 description = ensure there are no cyclic dependencies
-use_develop = true
-skip_install = false
 set_env =
 
 ##
@@ -168,9 +167,13 @@ set_env =
 allowlist_externals =
     sh
 deps =
+    mxdev
     pipdeptree
     pipforester
     -c https://dist.plone.org/release/6.1-dev/constraints.txt
+commands_pre =
+    mxdev -c mx.ini
+    pip install -rrequirements-mxdev.txt
 commands =
     # Generate the full dependency tree
     sh -c 'pipdeptree -j > forest.json'