--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/settings.ts	Tue Feb 08 21:40:33 2022 -0800
@@ -0,0 +1,46 @@
+import {
+	PluginSettingTab,
+	Setting
+} from 'obsidian';
+
+import {
+	RememberFileStatePlugin
+} from './main'
+
+export interface RememberFileStatePluginSettings {
+	rememberMaxFiles: number;
+}
+
+export const DEFAULT_SETTINGS: RememberFileStatePluginSettings = {
+	// Matches the number of files Obsidian remembers the undo/redo 
+	// history for by default (at least as of 0.13.17).
+	rememberMaxFiles: 20 
+}
+
+export class RememberFileStatePluginSettingTab extends PluginSettingTab {
+	plugin: RememberFileStatePlugin;
+
+	constructor(app: App, plugin: RememberFileStatePlugin) {
+		super(app, plugin);
+		this.plugin = plugin;
+	}
+
+	display(): void {
+		const {containerEl} = this;
+
+		containerEl.empty();
+
+		new Setting(containerEl)
+			.setName('Remember files')
+			.setDesc('How many files to remember at most')
+			.addText(text => text
+				.setValue(this.plugin.settings.rememberMaxFiles?.toString()))
+				.onChange(async (value) => {
+					const intValue = parseInt(value);
+					if (!isNaN(intValue)) {
+						this.plugin.settings.rememberMaxFiles = intValue;
+						await this.plugin.saveSettings();
+					}
+				});
+	}
+}