diff --git a/cmd/media-worker/main.go b/cmd/media-worker/main.go
new file mode 100644
index 0000000..06ab7d0
--- /dev/null
+++ b/cmd/media-worker/main.go
@@ -0,0 +1 @@
+package main
diff --git a/concept.md b/concept.md
new file mode 100644
index 0000000..b268ae8
--- /dev/null
+++ b/concept.md
@@ -0,0 +1,5 @@
+Watches an output directory per media-type, not starting any processing until a directory hasn't changed in 60s.
+
+Applies transformations as required - transcode, replaygain, naming, directory nesting, etc.
+
+Copies the file to the output library for the media type, verifying the copy matches the source, before removing the source.
\ No newline at end of file
diff --git a/container/Containerfile b/container/Containerfile
new file mode 100644
index 0000000..e69de29
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..b59f03e
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.fjla.uk/fred.boniface/media-worker
+
+go 1.26.8