diff --git a/base/Dockerfile b/base/Dockerfile
index e33e6cd..3737836 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -10,7 +10,6 @@ ARG DEBIAN_FRONTEND=noninteractive
 
 # install basics
 # TODO require python3 or python3-minimal?
-# TODO is dumb-init actually used?
 RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get install --no-install-recommends -y \
diff --git a/core/Dockerfile b/core/Dockerfile
index 0326db6..6fdd16d 100644
--- a/core/Dockerfile
+++ b/core/Dockerfile
@@ -10,7 +10,6 @@ ARG RELEASE_KEY_DOWNLOAD=0
 # install Kopano WebApp and refresh ca-certificates
 RUN \
     # community download and package as apt source repository
-    # TODO: source or execute repo script?
     . /kopano/helper/create-kopano-repo.sh && \
     if [ ${DOWNLOAD_COMMUNITY_PACKAGES} -eq 1 ]; then \
         dl_and_package_community "core"; \
diff --git a/webapp/Dockerfile b/webapp/Dockerfile
index d859145..c327340 100644
--- a/webapp/Dockerfile
+++ b/webapp/Dockerfile
@@ -11,7 +11,6 @@ ARG RELEASE_KEY_DOWNLOAD=0
 # install Kopano WebApp and refresh ca-certificates
 RUN \
     # community download and package as apt source repository
-    # TODO: source or execute repo script?
     . /kopano/helper/create-kopano-repo.sh && \
     if [ ${DOWNLOAD_COMMUNITY_PACKAGES} -eq 1 ]; then \
         dl_and_package_community "core"; \