diff --git a/README.md b/README.md
index fc81abfe..35f9e0df 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,23 @@
 
 The high level language that compiles to AIR and some wrappers in the host language (e.g. TypeScript).
 
+## Build and use jar file
+To build a file use this command:
+
+```commandline
+sbt assembly
+```
+
+
+jar file will be in `target/scala-2.13/aqua-hll.jar`
+
+Run:
+
+```commandline
+java -jar aqua-hll.jar path/to/input/dir path/to/output/dir
+```
+input directory should contain files with `aqua` scripts
+
 ### TODO
 
 - Lambda
diff --git a/build.sbt b/build.sbt
index eb3640be..faecbd6c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,6 +12,7 @@ lazy val root = project
     scalaVersion                := dottyVersion,
     mainClass in (Compile, run) := Some("aqua.AquaGen"),
     mainClass in assembly       := Some("aqua.AquaGen"),
+    assemblyJarName in assembly := "aqua-hll.jar",
     libraryDependencies ++= Seq(
       "org.typelevel"              %% "cats-effect"   % "3.0.0-RC2",
       "org.typelevel"              %% "cats-parse"    % "0.3.1",
@@ -19,9 +20,9 @@ lazy val root = project
       "com.github.julien-truffaut" %% "monocle-core"  % monocleV,
       "com.github.julien-truffaut" %% "monocle-macro" % monocleV,
       "co.fs2"                     %% "fs2-core"      % "3.0.0-M7",
-      "co.fs2"                     %% "fs2-io"        % "3.0.0-M7"
-    ),
-    libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.5" % Test
+      "co.fs2"                     %% "fs2-io"        % "3.0.0-M7",
+      "org.scalatest"              %% "scalatest"     % "3.2.5" % Test
+    )
   )
 
 addCompilerPlugin("org.typelevel" %% "kind-projector" % "0.11.3" cross CrossVersion.full)