diff --git a/esbuild.config.mjs b/esbuild.config.mjs
index 73f0deb..2906811 100644
--- a/esbuild.config.mjs
+++ b/esbuild.config.mjs
@@ -1,6 +1,6 @@
 import esbuild from "esbuild";
 import process from "process";
-import builtins from "builtin-modules";
+import { builtinModules } from "node:module";
 
 const banner = `/*
 THIS IS A GENERATED/BUNDLED FILE BY ESBUILD
@@ -28,7 +28,8 @@ const context = await esbuild.context({
 		"@lezer/common",
 		"@lezer/highlight",
 		"@lezer/lr",
-		...builtins,
+		...builtinModules,
+		...builtinModules.map((m) => `node:${m}`),
 	],
 	format: "cjs",
 	target: "es2018",
diff --git a/main.ts b/main.ts
index 7d9ccaa..b18a8da 100644
--- a/main.ts
+++ b/main.ts
@@ -62,7 +62,9 @@ export default class PracticePlannerPlugin extends Plugin {
 	}
 
 	async loadSettings() {
-		this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());
+		const data =
+			(await this.loadData()) as Partial<PracticePlannerSettings> | null;
+		this.settings = Object.assign({}, DEFAULT_SETTINGS, data);
 	}
 
 	async saveSettings() {
@@ -238,9 +240,9 @@ class PracticePlannerSettingTab extends PluginSettingTab {
 				text
 					.setPlaceholder("Practice")
 					.setValue(this.plugin.settings.folderPath)
-					.onChange(async (value) => {
+					.onChange((value) => {
 						this.plugin.settings.folderPath = value || "Practice";
-						await this.plugin.saveSettings();
+						void this.plugin.saveSettings();
 					}),
 			);
 
@@ -250,18 +252,22 @@ class PracticePlannerSettingTab extends PluginSettingTab {
 				"First day of the practice week. Weeks that cross into a new year are stored under the year they started.",
 			)
 			.addDropdown((dd) => {
-				DAY_NAMES.forEach((name, i) => dd.addOption(String(i), name));
+				DAY_NAMES.forEach((name, i) => {
+					dd.addOption(String(i), name);
+				});
 				dd.setValue(String(this.plugin.settings.weekStartDay));
-				dd.onChange(async (value) => {
+				dd.onChange((value) => {
 					this.plugin.settings.weekStartDay = Number(value) as DayIndex;
-					await this.plugin.saveSettings();
+					void this.plugin.saveSettings();
 				});
 			});
 
-		this.renderSkills(containerEl);
+		this.renderSkills(containerEl.createDiv());
 	}
 
 	private renderSkills(containerEl: HTMLElement): void {
+		containerEl.empty();
+
 		new Setting(containerEl)
 			.setName("Default skills")
 			.setDesc("Rows used in each new week's skill table. Edit a name inline, remove a skill, add new ones, or reset to the built-in defaults.")
@@ -272,18 +278,18 @@ class PracticePlannerSettingTab extends PluginSettingTab {
 				text
 					.setPlaceholder("Skill name")
 					.setValue(skill)
-					.onChange(async (value) => {
+					.onChange((value) => {
 						this.plugin.settings.skills[index] = value.trim();
-						await this.plugin.saveSettings();
+						void this.plugin.saveSettings();
 					});
 			}).addExtraButton((btn) => {
 				btn
 					.setIcon("trash")
 					.setTooltip("Remove skill")
-					.onClick(async () => {
+					.onClick(() => {
 						this.plugin.settings.skills.splice(index, 1);
-						await this.plugin.saveSettings();
-						this.display();
+						void this.plugin.saveSettings();
+						this.renderSkills(containerEl);
 					});
 			});
 		});
@@ -292,20 +298,20 @@ class PracticePlannerSettingTab extends PluginSettingTab {
 			.addButton((btn) => {
 				btn
 					.setButtonText("Add skill")
-					.onClick(async () => {
+					.onClick(() => {
 						this.plugin.settings.skills.push("");
-						await this.plugin.saveSettings();
-						this.display();
+						void this.plugin.saveSettings();
+						this.renderSkills(containerEl);
 					});
 			})
 			.addButton((btn) => {
 				btn
 					.setButtonText("Reset to default")
 					.setCta()
-					.onClick(async () => {
+					.onClick(() => {
 						this.plugin.settings.skills = [...DEFAULT_SETTINGS.skills];
-						await this.plugin.saveSettings();
-						this.display();
+						void this.plugin.saveSettings();
+						this.renderSkills(containerEl);
 					});
 			});
 	}
diff --git a/manifest.json b/manifest.json
index 12ee49e..1dfbfeb 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
 	"id": "practice-planner",
 	"name": "Weekly Music Practice Planner",
 	"version": "0.1.1",
-	"minAppVersion": "0.15.0",
+	"minAppVersion": "1.4.0",
 	"description": "Plan and track weekly music practice: per-skill progress by day, plus per-day notes.",
 	"author": "Patrick Driggett",
 	"authorUrl": "",
diff --git a/package-lock.json b/package-lock.json
index 6e90a40..c0a1b7a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,6 @@
 				"@types/node": "^16.11.6",
 				"@typescript-eslint/eslint-plugin": "5.29.0",
 				"@typescript-eslint/parser": "5.29.0",
-				"builtin-modules": "3.3.0",
 				"esbuild": "^0.28.1",
 				"obsidian": "latest",
 				"tslib": "2.4.0",
@@ -1003,19 +1002,6 @@
 				"node": ">=8"
 			}
 		},
-		"node_modules/builtin-modules": {
-			"version": "3.3.0",
-			"resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.3.0.tgz",
-			"integrity": "sha512-zhaCDicdLuWN5UbN5IMnFqNMhNfo919sH85y2/ea+5Yg9TsTkeZxpL+JLbp6cgYFS4sRLp3YV4S6yDuqVWHYOw==",
-			"dev": true,
-			"license": "MIT",
-			"engines": {
-				"node": ">=6"
-			},
-			"funding": {
-				"url": "https://github.com/sponsors/sindresorhus"
-			}
-		},
 		"node_modules/callsites": {
 			"version": "3.1.0",
 			"resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
diff --git a/package.json b/package.json
index f4bf237..b3a05e5 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,6 @@
 		"@types/node": "^16.11.6",
 		"@typescript-eslint/eslint-plugin": "5.29.0",
 		"@typescript-eslint/parser": "5.29.0",
-		"builtin-modules": "3.3.0",
 		"esbuild": "^0.28.1",
 		"obsidian": "latest",
 		"tslib": "2.4.0",