diff --git a/README.md b/README.md
index 309e2a1930186fc29a6bf31f3923a5159a803e3e..e17847351b15b873754ea41ab5556282bfa7a8dd 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,11 @@
 
 Can either be done with [stack][1] or [cabal][2], the easier of which is stack:
 
-    stack init
     stack build
+    
+That may ask you to install a compiler. You can either let stack
+install it locally via `stack setup` or use a globally installed one
+with `stack build --system-ghc`.
 
 Optionally, tests can be executed with:
 
diff --git a/stack.yaml b/stack.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7fa0d198b1f2e307824b7414c5924d7712914b8c
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1,7 @@
+flags: {}
+extra-package-dbs: []
+packages:
+- '.'
+extra-deps:
+- aeson-1.0.2.1
+resolver: lts-7.13