diff --git a/.env.sample b/.env.sample
index e206841..99ca90a 100644
--- a/.env.sample
+++ b/.env.sample
@@ -16,6 +16,10 @@ SECRET_DJANGO_SECRET_KEY_VERSION=v1 # length=128
 SECRET_HYPERKITTY_API_KEY_VERSION=v1 # length=32
 SECRET_MAILMAN_REST_PASSWORD_VERSION=v1
 
+# Sign up functionality
+# LOCAL_SIGNUP_DISABLED=1
+# SOCIAL_SIGNUP_DISBALED=1
+
 # Keycloak SSO
 # KEYCLOAK_SSO_ENABLED=1
 # KEYCLOAK_DOMAIN=login.example.com
diff --git a/abra.sh b/abra.sh
index 15eaeba..4a22f5d 100644
--- a/abra.sh
+++ b/abra.sh
@@ -1,5 +1,5 @@
 export CORE_ENTRYPOINT_CONF_VERSION=v1
 export MAILMAN_EXTRA_CFG_VERSION=v1
 export NGINX_CONF_VERSION=v1
-export SETTINGS_LOCAL_VERSION=v1
+export SETTINGS_LOCAL_VERSION=v2
 export WEB_ENTRYPOINT_CONF_VERSION=v1
diff --git a/settings_local.py.tmpl b/settings_local.py.tmpl
index bce3d89..0d78b21 100644
--- a/settings_local.py.tmpl
+++ b/settings_local.py.tmpl
@@ -11,6 +11,14 @@ HAYSTACK_CONNECTIONS = {
 
 MAILMAN_ARCHIVER_FROM = ["*"]
 
+{{ if eq (env "LOCAL_SIGNUP_DISABLED") "1" }}
+ACCOUNT_ADAPTER = 'django_mailman3.views.user_adapter.DisableSignupAdapter'
+{{ end }}
+
+{{ if eq (env "SOCIAL_SIGNUP_DISABLED") "1" }}
+SOCIALACCOUNT_ADAPTER = 'django_mailman3.views.user_adapter.DisableSocialSignupAdapter'
+{{ end }}
+
 {{ if eq (env "KEYCLOAK_SSO_ENABLED") "1" }}
 SOCIALACCOUNT_PROVIDERS = {
     'keycloak': {