add zio demo

build.sbt

@@ -6,7 +6,7 @@ lazy val firepower =
     )
     .withCats
     .withTesting
-    .aggregate(nescant, scratchpad)
+    .aggregate(nescant, scratchpad, demo)
 
 lazy val nescant =
   project.withCats.withTesting
@@ -15,3 +15,7 @@ lazy val scratchpad =
   project
     .withCats
     .withTesting
+
+lazy val demo =
+  module("demo")
+    .withEfectMonad

firepower-demo/src/main/scala/com/htmlism/firepower/demo/PrintPrograms.scala

@@ -0,0 +1,8 @@
+import zio.*
+
+import java.io.IOException
+
+object PrintPrograms extends ZIOAppDefault:
+  def run: IO[IOException, Unit] =
+    Console
+      .printLine("Hello, World!")

project/ProjectPlugin.scala

@@ -7,10 +7,20 @@ object ProjectPlugin extends AutoPlugin {
   val autoImport = ThingsToImport
 
   object ThingsToImport {
+    private def jarName(s: String) =
+      "firepower-" + s
+
+    def module(s: String): Project =
+      Project(s, file(jarName(s)))
+        .settings(name := jarName(s))
+
     implicit class ProjectOps(p: Project) {
       def withCats: Project =
         p.settings(libraryDependencies += "org.typelevel" %% "cats-core" % "2.9.0")
 
+      def withEfectMonad: Project =
+        p.settings(libraryDependencies += "dev.zio" %% "zio" % "2.0.4")
+
       def withTesting: Project = {
         val weaverVersion =
           "0.8.0"