diff --git a/justfile b/justfile
index da805c5..f066879 100644
--- a/justfile
+++ b/justfile
@@ -8,17 +8,30 @@ r *ARG:
 e:
   cargo expand --bin lstodo | bat -l rs
 
-# build release binary
-bc:
+# cargo build release binary
+cb:
   cargo build --frozen --release --all-features
 
-bn:
-  nix build |& nom
-
 # remove the target dir
-c:
+cc:
   cargo clean
 
+# nix build release derivative
+nb:
+  nix build |& nom
+
+# nix update flake.lock
+nu:
+  nix flake update
+
+# nix check flake
+nc:
+  nix flake check
+
+# nix show flake's info
+ns:
+  nix flake show
+
 # reload environment
 d:
   direnv reload
\ No newline at end of file