diff --git a/Dockerfile b/Dockerfile
index 9f47861..7e3ddef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,12 @@
+# Note: this is cross-building for armv7l, which is the architecture of the Kobo Elipsa 2E devices
+# This Dockerfile is meant to be used only to support the build of the KoboRoot.tgz
+# The final image is based on scratch, with the binary, the ca-certificates and any other content to ship to the device.
+# The image is squashed and stored as KoboRoot.tgz for the release.
 FROM golang:1.23 AS builder
 
 WORKDIR /go/src/app
 COPY . .
+
 RUN CGO_ENABLED=0 GOARCH=arm go build -a -o manager main.go
 
 FROM scratch