diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..eedc55d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,4 @@
+eval $(guix shell --search-paths)
+export GEM_HOME=$PWD/.gems
+export GEM_PATH=$GEM_HOME/gems
+export PATH=$GEM_HOME/bin:$PATH
diff --git a/.gitignore b/.gitignore
index 7e5db71..fb9cbad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@
 # Ignore all environment files (except templates).
 /.env*
 !/.env*.erb
+!/.envrc
 
 # Ignore all logfiles and tempfiles.
 /log/*