diff --git a/bun/uts-forester.js b/bun/uts-forester.js
index 2d9923e..3256d0d 100644
--- a/bun/uts-forester.js
+++ b/bun/uts-forester.js
@@ -22,8 +22,8 @@ function getAppliedMode(userPreference) {
 
 function setAppliedMode(mode) {
     document.documentElement.dataset.appliedMode = mode
-    // const ninja = document.querySelector('ninja-keys');
-    // ninja.setAttribute('class', mode);
+    const ninja = document.querySelector('ninja-keys');
+    ninja.setAttribute('class', mode);
 }
 
 function rotatePreferences(userPreference) {
diff --git a/justfile b/justfile
index 1e9b12f..b3a61d4 100644
--- a/justfile
+++ b/justfile
@@ -1,9 +1,11 @@
-# to access recipes without prefixing `just`, run `source ./init.sh` after openning each new terminal
+export PROJECT_ROOT := justfile_directory()
+
 default:
     just --list
+    @echo '💡Tip: run "source ./init.sh" after openning each new terminal, to access recipes without prefixing "just"'
 
-new +X:
-    ./new.sh {{X}}
+new +PARAMS:
+    ./new.sh {{PARAMS}}
 
 build:
     ./build.sh
@@ -51,5 +53,9 @@ penrose SOURCE:
     mkdir -p output/penrose/
     cp -f {{SOURCE}} output/penrose/
 
+envs:
+    #!/usr/bin/env bash
+    echo "PROJECT_ROOT: $PROJECT_ROOT"
+
 # act:
 #     ./act.sh
diff --git a/trees/index.tree b/trees/index.tree
index aaccde2..37414d7 100644
--- a/trees/index.tree
+++ b/trees/index.tree
@@ -1,10 +1,6 @@
 \title{home}
 \tag{root}
 
-\author{utensil}
-
-\date{2024-04-24}
-
 \import{macros}
 
 \p{I'm [[utensil]], my notes are hosted here.}
diff --git a/trees/uts-0018.tree b/trees/uts-0018.tree
index 4ca2afb..890580d 100644
--- a/trees/uts-0018.tree
+++ b/trees/uts-0018.tree
@@ -43,7 +43,7 @@
 - add [[uts-001P]]
 - learn about [monorepo tools](https://monorepo.tools/): nx seems to have most [feature-complete](https://monorepo.tools/#tools-review) support for [most stacks](https://nx.dev/getting-started/intro#pick-your-stack), moon is the next best choice for [Bun.js](https://moonrepo.dev/docs/guides/javascript/bun-handbook)+[Rust](https://moonrepo.dev/docs/guides/rust/handbook) projects that I have in mind. Other resources:
     - [Building a Monorepo with Rust](https://earthly.dev/blog/rust-monorepo/)
-- I need to learn more about [Salva](https://salva.rs/): fluids simulation in Rust that works with [Rapier](https://github.com/dimforge/rapier.js/), but it doesn't seem to have a JS binding yet, rapier even has an [r3f](https://github.com/dimforge/rapier.js/) package, and plugins for bevy. See [FLUID SIMULATION - SIGGRAPH 2007 Course Notes](https://www.cs.ubc.ca/~rbridson/fluidsimulation/fluids_notes.pdf) to learn more about fluid simulation.
+- I need to learn more about [Salva](https://salva.rs/): fluids simulation in Rust that works with [Rapier](https://github.com/dimforge/rapier.js/), but it doesn't seem to have a JS binding yet, rapier even has an [r3f](https://github.com/dimforge/rapier.js/) package, and a plugin for bevy. See [FLUID SIMULATION - SIGGRAPH 2007 Course Notes](https://www.cs.ubc.ca/~rbridson/fluidsimulation/fluids_notes.pdf) to learn more about fluid simulation.
 - learn about [WLJS](https://jerryi.github.io/wljs-docs/) for Wolfram Mathematica, recalled [my early Mathematica notebooks](https://github.com/utensil/mathematica-notebooks), and wish to do SSR for them
 }