diff --git a/aoc b/aoc
index 71e351e..25e8e5e 100644
--- a/aoc
+++ b/aoc
@@ -19,6 +19,7 @@ SAMPLE_TEST_JSON = "{}"
 RUNNERS = {
     "py": (None, ["./runners/py.sh"]),
     "go": (["./runners/buildGo.sh"], None),
+    "kt": (["./runners/buildKotlin.sh"], ["./runners/jar.sh"]),
 }
 
 
@@ -167,11 +168,11 @@ def get_runner_command(
         print(f"No build or run command specified for runner {file_extension}")
         raise SystemExit(1)
 
-    if runner_run is not None and runner_build is not None:
-        print(
-            f"Build command and run command specified for {file_extension} - cannot determine path forwards."
-        )
-        raise SystemExit(1)
+    # if runner_run is not None and runner_build is not None:
+    #     print(
+    #         f"Build command and run command specified for {file_extension} - cannot determine path forwards."
+    #     )
+    #     raise SystemExit(1)
 
     command = runner_build + [file_name]
     set_terminal_colour("grey")
@@ -182,7 +183,11 @@ def get_runner_command(
         print(f"Failed to build: `{command}` returned exit code {exit_code}")
         raise SystemExit(1)
     fpstr = fpath.decode().strip()
-    return [fpstr], lambda: os.unlink(fpstr)
+
+    if runner_run is None:
+        return [fpstr], lambda: os.unlink(fpstr)
+
+    return runner_run + [fpstr], lambda: os.unlink(fpstr)
 
 
 class CLI(object):
diff --git a/runners/buildKotlin.sh b/runners/buildKotlin.sh
new file mode 100644
index 0000000..d49ada7
--- /dev/null
+++ b/runners/buildKotlin.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+TEMPDIR="$(mktemp -d)"
+FNAME=$(basename $1 | sed 's/\.kt$/.jar/')
+FULLPATH="$TEMPDIR/$FNAME"
+kotlinc "$1" -include-runtime -d "$FULLPATH"
+echo $FULLPATH
diff --git a/runners/jar.sh b/runners/jar.sh
new file mode 100644
index 0000000..857fab3
--- /dev/null
+++ b/runners/jar.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -e
+
+java -jar $@
\ No newline at end of file
diff --git a/templates/main.kt b/templates/main.kt
new file mode 100644
index 0000000..095ee7a
--- /dev/null
+++ b/templates/main.kt
@@ -0,0 +1,32 @@
+import java.lang.System
+import kotlin.system.*
+import kotlin.sequences.generateSequence
+
+fun parse(instr: String) {
+    
+}
+
+fun one(instr: String): Int {
+    return 0
+}
+
+fun two(instr: String): Int {
+    return 0
+}
+
+fun main(args: Array<String>) {
+    if (args.size < 1 || !(args[0] == "1" || args[0] == "2")) {
+        debug("Missing or invalid day argument")
+        exitProcess(1)
+    }
+    val inp = generateSequence(::readLine).joinToString("\n")
+    if (args[0] == "1") {
+        println("${one(inp)}")
+    } else {
+        println("${two(inp)}")
+    }
+}
+
+fun debug(msg: String) {
+    System.err.println(msg)
+}
\ No newline at end of file