diff --git a/Makefile b/Makefile
deleted file mode 100644
index 2db8702..0000000
--- a/Makefile
+++ /dev/null
@@ -1,27 +0,0 @@
-SHELL := bash
-.SHELLFLAGS := -eu -o pipefail -c
-.DELETE_ON_ERROR:
-MAKEFLAGS += --warn-undefined-variables
-MAKEFLAGS += --no-builtin-rules
-
-HOSTNAME ?= $(shell hostname)
-UNAME_S := $(shell uname -s)
-
-ifeq ($(UNAME_S),Linux)
-	SWITCH_CMD := nixos-rebuild --use-remote-sudo -I nixos-config="machines/$(HOSTNAME)/configuration.nix" switch --flake '.\#'
-endif
-ifeq ($(UNAME_S),Darwin)
-	SWITCH_CMD := exec darwin-rebuild switch --flake .
-endif
-
-switch:
-	$(SWITCH_CMD)
-
-rollback:
-	nixos-rebuild --use-remote-sudo switch --rollback -I nixos-config="machines/$(HOSTNAME)/configuration.nix"
-
-update:
-	@./nix-flake-update.sh
-
-fmt:
-	nixpkgs-fmt .
diff --git a/README.md b/README.md
index 092f33d..404e4f7 100644
--- a/README.md
+++ b/README.md
@@ -9,10 +9,18 @@ The configuration is very specific to my own machines and setup, but it may be a
 > on macOS: install the latest unstable nix from https://github.com/numtide/nix-unstable-installer (for nix flakes),
 > and nix-darwin: https://github.com/LnL7/nix-darwin
 
-To run a rebuild:
+Recipes are stored in a justfile. [just](https://github.com/casey/just) is required.
+
+To run a nixos rebuild:
 
 ```sh
-make
+just build-linux
+```
+
+To Run a darwin rebuild:
+
+```sh
+just build-mac
 ```
 
 ## Update
@@ -20,7 +28,7 @@ make
 To update nixpkgs defined in [flake.nix](./flake.nix), run:
 
 ```sh
-make update
+just update
 ```
 
 If there are updates, they should be reflected in [flake.lock](./flake.lock).
@@ -30,7 +38,7 @@ If there are updates, they should be reflected in [flake.lock](./flake.lock).
 To rollback to the previous generation:
 
 ```sh
-make rollback
+just rollback
 ```
 
 ## Pre-commit hooks
diff --git a/flake.lock b/flake.lock
index 488f36d..2687613 100644
--- a/flake.lock
+++ b/flake.lock
@@ -30,11 +30,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1710255615,
-        "narHash": "sha256-DFooGP2D6cNfOj35qkptUgG0r+VxuI38QgNAoYxmVE0=",
+        "lastModified": 1710281379,
+        "narHash": "sha256-uFo9hxt982L3nFJeweW4Gip2esiGrIQlbvEGrNTh4AY=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "c7ae5dc969b93f3221f5c228f0ec3de3e2b8084e",
+        "rev": "d9ea313bc4851670dc99c5cc979cb79750e7d670",
         "type": "github"
       },
       "original": {
@@ -155,11 +155,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1710162809,
-        "narHash": "sha256-i2R2bcnQp+85de67yjgZVvJhd6rRnJbSYNpGmB6Leb8=",
+        "lastModified": 1710283656,
+        "narHash": "sha256-nI+AOy4uK6jLGBi9nsbHjL1EdSIzoo8oa+9oeVhbyFc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ddcd7598b2184008c97e6c9c6a21c5f37590b8d2",
+        "rev": "51063ed4f2343a59fdeebb279bb81d87d453942b",
         "type": "github"
       },
       "original": {
@@ -187,11 +187,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1710252211,
-        "narHash": "sha256-hQChQpB4LDBaSrNlD6DPLhU9T+R6oyxMCg2V+S7Y1jg=",
+        "lastModified": 1710313540,
+        "narHash": "sha256-HtTTpGe0azsEJVaT9RvbGFGB4idUneraLiUTxFb3ABM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7eeacecff44e05a9fd61b9e03836b66ecde8a525",
+        "rev": "4008381882569ab4773f2ba0d7b7bbde8f665672",
         "type": "github"
       },
       "original": {
diff --git a/justfile b/justfile
new file mode 100644
index 0000000..6965e72
--- /dev/null
+++ b/justfile
@@ -0,0 +1,18 @@
+set export
+
+host := `hostname`
+
+build-linux:
+	nixos-rebuild --use-remote-sudo -I nixos-config=machines/$host/configuration.nix switch --flake .
+
+build-mac:
+	darwin-rebuild switch --flake .
+
+rollback:
+	nixos-rebuild --use-remote-sudo switch --rollback -I nixos-config="machines/$host/configuration.nix"
+
+update:
+	@./nix-flake-update.sh
+
+fmt:
+	nixpkgs-fmt .
diff --git a/nix-flake-update.sh b/nix-flake-update.sh
index 0542e15..0ce481f 100755
--- a/nix-flake-update.sh
+++ b/nix-flake-update.sh
@@ -2,9 +2,18 @@
 
 set -euo pipefail
 
+arch=$(uname -s)
+
 git pull
 update_msg=$(nix flake update 2>&1 | grep -v 'warning:')
-make
+if [[ $arch == "Linux" ]]; then
+  just build-linux
+elif [[ $arch == "Darwin" ]]; then
+  just build-darwin
+else
+  echo "Unsupported OS: $arch"
+  exit 1
+fi
 git add .
 git commit -S -m "nix flake update: $(TZ=UTC date '+%Y-%m-%d %H:%M:%S %Z')
 
diff --git a/packages.nix b/packages.nix
index 4ce60a7..c6380c7 100644
--- a/packages.nix
+++ b/packages.nix
@@ -25,6 +25,7 @@ in
     eza
     fd
     hadolint
+    just
     nodePackages.eslint
     oha
     pre-commit