diff --git a/lab1/Justfile b/lab1/Justfile
new file mode 100644
index 0000000..1ab8b38
--- /dev/null
+++ b/lab1/Justfile
@@ -0,0 +1,18 @@
+all: a1 a2 a3 a4
+
+a1:
+    g++ -o hello hello.cc
+    ./hello
+a2:
+    g++ -std=c++11 -o separate_main separate_main.cc separate_fn.cc
+
+a3:
+    g++ -std=c++11 -c separate_main.cc
+    g++ -std=c++11 -c separate_fn.cc
+    g++ -std=c++11 -o separate_main separate_main.o separate_fn.o
+
+a4:
+    g++ -std=c++11 -o separate_main separate_main.cc
+
+a5:
+    g++ -c -O2 -Wall -Wextra -pedantic-errors -Wold-style-cast -std=c++11 hello.cc