diff --git a/Justfile b/Justfile
index c07aaea..953e9df 100644
--- a/Justfile
+++ b/Justfile
@@ -10,6 +10,10 @@ all-release: build-release test-release
 @build-release:
     cargo build --release --verbose
 
+# compiles the exa binary with every combination of feature flags
+build-features:
+    cargo hack build --feature-powerset
+
 
 # runs unit tests
 @test:
@@ -19,6 +23,10 @@ all-release: build-release test-release
 @test-release:
     cargo test --release --all --verbose
 
+# runs unit tests with every combination of feature flags
+test-features:
+    cargo hack test --feature-powerset --lib -- --quiet
+
 
 # prints versions of the necessary build tools
 @versions:
diff --git a/Vagrantfile b/Vagrantfile
index 9da4b2e..1da3bc8 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -55,6 +55,7 @@ Vagrant.configure(2) do |config|
       else
         set -xe
         curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+        cargo install cargo-hack
       fi
     EOF