diff --git a/README.md b/README.md
index 65acb81..5ab3533 100644
--- a/README.md
+++ b/README.md
@@ -242,6 +242,8 @@ code. `NEWS.md` provides a friendly overview of the changes for each release.
 
 ## Finding your way in the codebase
 
+Folders:
+
 - `app`:
   *main* functions of the web app, for regular build and for development modes
 - `config`:
@@ -270,6 +272,37 @@ code. `NEWS.md` provides a friendly overview of the changes for each release.
 - `th`:
   Domain-specific language snippets, from which code is generated using TH
 
+Files:
+
+- `_boring`
+- `th/routes`
+- `th/models`
+- `update-deps.sh`
+- `bindist.sh`
+
+Haskell modules in `src`:
+
+- Non-`Vervis` modules:
+  - Modules ending with `Local`:
+  - The rest:
+- `Vervis.Data`
+- `Vervis.Persist`
+- `Vervis.Fetch`
+- `Vervis.Query`
+- `Vervis.Web`
+- Primary web app support modules:
+  - `Vervis.Foundation`
+  - `Vervis.Application`
+  - `Vervis.Settings`
+  - `Vervis.Model`
+  - `Vervis.Migration`
+- Primary web app logic modules:
+  - `Vervis.API`
+  - `Vervis.Federation`
+  - `Vervis.Handler`
+  - `Vervis.Client`
+- `Vervis.Ssh`
+
 ## Reporting Bugs and Suggesting Features
 
 If you found a bug, or you have an idea, a feature request or a wishlist item,