Minimal setup for using lein garden to auto-compile CSS

min-lein-garden.core.clj

(ns min-lein-garden.core
  (:require [garden.def :refer [defstyles]]))

(defstyles style
  [:body
   {:font-size "14px"
    :background "#f00"}])

min-lein-garden.directories.txt

.
├── project.clj
└── src
    └── min_lein_garden
        └── core.clj

min-lein-garden.project.clj

(defproject min-lein-garden "0.0.1"
  :dependencies [[org.clojure/clojure "1.8.0"]
                 [garden "1.3.2"]]
  :plugins [[lein-garden "0.3.0"]]
  :garden
  {:builds [{:source-paths ["src"]
             :stylesheet min-lein-garden.core/style
             :compiler {:output-to "resources/public/css/main.css"}}]})