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-rw-r--r--README.md11
1 files changed, 7 insertions, 4 deletions
diff --git a/README.md b/README.md
index 3d06eeb..ae5c779 100644
--- a/README.md
+++ b/README.md
@@ -4,14 +4,17 @@ challenge dev setup
 
 Get a shell:
 
-```
-$ nix develop
+```bash
+; nix develop
+
+# enable flakes if you haven't:
+; nix --experimental-features 'nix-command flakes' develop
 ```
 
 Exec solve script:
 
-```
-$ python3 solve.py
+```bash
+; python3 solve.py
 ```
 
 ---