Basic Clojure example for Skija

core.clj

(ns skija.core
  (:import [org.jetbrains.skija Canvas Surface Paint Color4f
            EncodedImageFormat]
           [java.nio.file Path Files OpenOption]))

(defn write-bytes [#^bytes b path]
  (Files/write (Path/of "output.png" (make-array String 0)) b (make-array OpenOption 0)))

(defn show []
  (let [surface (Surface/makeRasterN32Premul 100 100)
        canvas  (.getCanvas surface)
        paint   (doto (Paint.) (.setColor4f (Color4f. (float 1) (float 0) (float 0))))]
    (.drawCircle canvas 50 50 30 paint)
    (write-bytes
     (-> surface
         .makeImageSnapshot
         (.encodeToData EncodedImageFormat/PNG)
         .getBytes)
     "output.png")))

deps.edn

{:deps      {org.clojure/clojure             {:mvn/version "1.10.1"}
             org.jetbrains.skija/skija-macos {:mvn/version "0.6.10"}}
 :mvn/repos {"space-maven" {:url "https://packages.jetbrains.team/maven/p/skija/maven"}}}

Based on this example from the official docs https://github.com/JetBrains/skija/blob/master/docs/Getting%20Started.md#rendering-the-first-image