diff --git a/.golangci.yml b/.golangci.yml
index fbf5008..a44fa44 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,10 +1,11 @@
+version: "2"
+
 run:
   timeout: 5m
 
 linters:
   enable:
     - errcheck
-    - gosimple
     - govet
     - ineffassign
     - staticcheck
diff --git a/Makefile b/Makefile
index 48306a7..cf68d01 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+# Requires a POSIX shell (use Git Bash on Windows).
 .PHONY: help dev build test test-unit lint sqlc migrate fmt clean
 
 help:
diff --git a/cmd/server/.gitkeep b/cmd/server/.gitkeep
deleted file mode 100644
index e69de29..0000000