fix mongodb templates and add migrate and generate scripts

.changeset/slow-melons-shine.md

@@ -0,0 +1,5 @@
+---
+"create-better-t-stack": patch
+---
+
+add migrate and generate scripts

apps/cli/src/helpers/project-config.ts

@@ -58,8 +58,8 @@ async function updateRootPackageJson(
 	const needsDbScripts =
 		options.backend !== "convex" &&
 		options.database !== "none" &&
-		options.orm !== "none";
+		options.orm !== "none" &&
-
+		options.orm !== "mongoose";
 	if (options.addons.includes("turborepo")) {
 		scripts.dev = "turbo dev";
 		scripts.build = "turbo build";
@@ -73,6 +73,13 @@ async function updateRootPackageJson(
 		if (needsDbScripts) {
 			scripts["db:push"] = `turbo -F ${backendPackageName} db:push`;
 			scripts["db:studio"] = `turbo -F ${backendPackageName} db:studio`;
+			if (options.orm === "prisma") {
+				scripts["db:generate"] = `turbo -F ${backendPackageName} db:generate`;
+				scripts["db:migrate"] = `turbo -F ${backendPackageName} db:migrate`;
+			} else if (options.orm === "drizzle") {
+				scripts["db:generate"] = `turbo -F ${backendPackageName} db:generate`;
+				scripts["db:migrate"] = `turbo -F ${backendPackageName} db:migrate`;
+			}
 		}
 	} else if (options.packageManager === "pnpm") {
 		scripts.dev = devScript;
@@ -87,6 +94,17 @@ async function updateRootPackageJson(
 		if (needsDbScripts) {
 			scripts["db:push"] = `pnpm --filter ${backendPackageName} db:push`;
 			scripts["db:studio"] = `pnpm --filter ${backendPackageName} db:studio`;
+			if (options.orm === "prisma") {
+				scripts["db:generate"] =
+					`pnpm --filter ${backendPackageName} db:generate`;
+				scripts["db:migrate"] =
+					`pnpm --filter ${backendPackageName} db:migrate`;
+			} else if (options.orm === "drizzle") {
+				scripts["db:generate"] =
+					`pnpm --filter ${backendPackageName} db:generate`;
+				scripts["db:migrate"] =
+					`pnpm --filter ${backendPackageName} db:migrate`;
+			}
 		}
 	} else if (options.packageManager === "npm") {
 		scripts.dev = devScript;
@@ -102,6 +120,17 @@ async function updateRootPackageJson(
 			scripts["db:push"] = `npm run db:push --workspace ${backendPackageName}`;
 			scripts["db:studio"] =
 				`npm run db:studio --workspace ${backendPackageName}`;
+			if (options.orm === "prisma") {
+				scripts["db:generate"] =
+					`npm run db:generate --workspace ${backendPackageName}`;
+				scripts["db:migrate"] =
+					`npm run db:migrate --workspace ${backendPackageName}`;
+			} else if (options.orm === "drizzle") {
+				scripts["db:generate"] =
+					`npm run db:generate --workspace ${backendPackageName}`;
+				scripts["db:migrate"] =
+					`npm run db:migrate --workspace ${backendPackageName}`;
+			}
 		}
 	} else if (options.packageManager === "bun") {
 		scripts.dev = devScript;
@@ -116,6 +145,17 @@ async function updateRootPackageJson(
 		if (needsDbScripts) {
 			scripts["db:push"] = `bun run --filter ${backendPackageName} db:push`;
 			scripts["db:studio"] = `bun run --filter ${backendPackageName} db:studio`;
+			if (options.orm === "prisma") {
+				scripts["db:generate"] =
+					`bun run --filter ${backendPackageName} db:generate`;
+				scripts["db:migrate"] =
+					`bun run --filter ${backendPackageName} db:migrate`;
+			} else if (options.orm === "drizzle") {
+				scripts["db:generate"] =
+					`bun run --filter ${backendPackageName} db:generate`;
+				scripts["db:migrate"] =
+					`bun run --filter ${backendPackageName} db:migrate`;
+			}
 		}
 	}
 
@@ -192,9 +232,13 @@ async function updateServerPackageJson(
 		if (options.orm === "prisma") {
 			scripts["db:push"] = "prisma db push --schema ./prisma/schema";
 			scripts["db:studio"] = "prisma studio";
+			scripts["db:generate"] = "prisma generate --schema ./prisma/schema";
+			scripts["db:migrate"] = "prisma migrate dev";
 		} else if (options.orm === "drizzle") {
 			scripts["db:push"] = "drizzle-kit push";
 			scripts["db:studio"] = "drizzle-kit studio";
+			scripts["db:generate"] = "drizzle-kit generate";
+			scripts["db:migrate"] = "drizzle-kit migrate";
 		}
 	}
 

apps/cli/src/helpers/template-manager.ts

@@ -371,7 +371,7 @@ export async function setupAuthTemplate(
 				authDbSrc = path.join(
 					PKG_ROOT,
 					`templates/auth/server/db/mongoose/${db}`,
-				)
+				);
 			}
 			if (authDbSrc && (await fs.pathExists(authDbSrc))) {
 				await processAndCopyFiles("**/*", authDbSrc, serverAppDir, context);

apps/cli/src/index.ts

@@ -446,6 +446,10 @@ function processAndValidateFlags(
 			config.dbSetup = "none";
 		}
 
+		if (config.orm === "mongoose" && !providedFlags.has("database")) {
+			config.database = "mongodb";
+		}
+
 		if (effectiveDatabase === "mongodb" && effectiveOrm === "drizzle") {
 			consola.fatal(
 				"Drizzle ORM is not compatible with MongoDB. Please use --orm prisma or --orm mongoose.",

apps/cli/templates/addons/turborepo/turbo.json.hbs

@@ -29,6 +29,14 @@
 		"db:studio": {
 			"cache": false,
 			"persistent": true
+		},
+		"db:migrate": {
+			"cache": false,
+			"persistent": true
+		},
+		"db:generate": {
+			"cache": false,
+			"persistent": true
 		}
 		{{/unless}}{{/if}}
 	}

apps/cli/templates/auth/server/base/src/lib/auth.ts.hbs

@@ -11,6 +11,7 @@ export const auth = betterAuth({
     {{#if (eq database "postgres")}}provider: "postgresql"{{/if}}
     {{#if (eq database "sqlite")}}provider: "sqlite"{{/if}}
     {{#if (eq database "mysql")}}provider: "mysql"{{/if}}
+    {{#if (eq database "mongodb")}}provider: "mongodb"{{/if}}
   }),
   trustedOrigins: [
     process.env.CORS_ORIGIN || "",{{#if (includes frontend "native")}}
@@ -67,7 +68,7 @@ import { expo } from "@better-auth/expo";
 import { client } from "../db";
 
 export const auth = betterAuth({
-    database: mongodbAdapter(client.db()),
+    database: mongodbAdapter(client),
     trustedOrigins: [
         process.env.CORS_ORIGIN || "",{{#if (includes frontend "native")}}
         "my-better-t-app://",{{/if}}

apps/cli/templates/db/mongoose/mongodb/src/db/index.ts

@@ -1,6 +1,9 @@
-import mongoose from 'mongoose';
+import mongoose from "mongoose";
 
-await mongoose.connect(process.env.DATABASE_URL || "");
+await mongoose.connect(process.env.DATABASE_URL || "").catch((error) => {
-const client = mongoose.connection.getClient();
+  console.log("Error connecting to database:", error);
+});
+
+const client = mongoose.connection.getClient().db("myDB");
 
 export { client };

apps/cli/templates/examples/todo/server/prisma/base/src/routers/todo.ts.hbs

@@ -23,7 +23,11 @@ export const todoRouter = {
     }),
 
   toggle: publicProcedure
+    {{#if (eq database "mongodb")}}
+    .input(z.object({ id: z.string(), completed: z.boolean() }))
+    {{else}}
     .input(z.object({ id: z.number(), completed: z.boolean() }))
+    {{/if}}
     .handler(async ({ input }) => {
       await prisma.todo.update({
         where: { id: input.id },
@@ -33,7 +37,11 @@ export const todoRouter = {
     }),
 
   delete: publicProcedure
+    {{#if (eq database "mongodb")}}
+    .input(z.object({ id: z.string() }))
+    {{else}}
     .input(z.object({ id: z.number() }))
+    {{/if}}
     .handler(async ({ input }) => {
       await prisma.todo.delete({
         where: { id: input.id },
@@ -69,7 +77,11 @@ export const todoRouter = router({
     }),
 
   toggle: publicProcedure
+    {{#if (eq database "mongodb")}}
+    .input(z.object({ id: z.string(), completed: z.boolean() }))
+    {{else}}
     .input(z.object({ id: z.number(), completed: z.boolean() }))
+    {{/if}}
     .mutation(async ({ input }) => {
       try {
         return await prisma.todo.update({
@@ -85,7 +97,11 @@ export const todoRouter = router({
     }),
 
   delete: publicProcedure
+    {{#if (eq database "mongodb")}}
+    .input(z.object({ id: z.string() }))
+    {{else}}
     .input(z.object({ id: z.number() }))
+    {{/if}}
     .mutation(async ({ input }) => {
       try {
         return await prisma.todo.delete({

apps/web/package.json

@@ -22,10 +22,12 @@
     "lucide-react": "^0.503.0",
     "motion": "^12.8.0",
     "next": "15.3.1",
+    "next-themes": "^0.4.6",
     "nuqs": "^2.4.3",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-tweet": "^3.2.2",
+    "sonner": "^2.0.3",
     "tailwind-merge": "^3.2.0"
   },
   "devDependencies": {

apps/web/src/app/(home)/_components/StackArchitech.tsx

@@ -34,7 +34,8 @@ import Image from "next/image";
 import Link from "next/link";
 import { useQueryStates } from "nuqs";
 import type React from "react";
-import { useEffect, useRef, useState } from "react";
+import { useEffect, useMemo, useRef, useState } from "react";
+import { toast } from "sonner";
 
 const validateProjectName = (name: string): string | undefined => {
 	const INVALID_CHARS = ["<", ">", ":", '"', "|", "?", "*"];
@@ -164,12 +165,15 @@ const getCategoryDisplayName = (categoryKey: string): string => {
 interface CompatibilityResult {
 	adjustedStack: StackState | null;
 	notes: Record<string, { notes: string[]; hasIssue: boolean }>;
+	changes: Array<{ category: string; message: string }>;
 }
 
 const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 	const nextStack = { ...stack };
 	let changed = false;
 	const notes: CompatibilityResult["notes"] = {};
+	const changes: Array<{ category: string; message: string }> = [];
+
 	for (const cat of CATEGORY_ORDER) {
 		notes[cat] = { notes: [], hasIssue: false };
 	}
@@ -190,20 +194,25 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 		for (const [key, value] of Object.entries(convexOverrides)) {
 			const catKey = key as keyof StackState;
 			if (JSON.stringify(nextStack[catKey]) !== JSON.stringify(value)) {
+				const displayName = getCategoryDisplayName(catKey);
+				const valueDisplay = Array.isArray(value) ? value.join(", ") : value;
+				const message = `${displayName} set to '${valueDisplay}'`;
+
 				notes[catKey].notes.push(
-					`Convex backend selected: ${getCategoryDisplayName(
+					`Convex backend selected: ${displayName} will be set to '${valueDisplay}'.`,
-						catKey,
-					)} will be set to '${Array.isArray(value) ? value.join(", ") : value}'.`,
 				);
 				notes.backend.notes.push(
-					`Convex requires ${getCategoryDisplayName(catKey)} to be '${
+					`Convex requires ${displayName} to be '${valueDisplay}'.`,
-						Array.isArray(value) ? value.join(", ") : value
-					}'.`,
 				);
 				notes[catKey].hasIssue = true;
 				notes.backend.hasIssue = true;
 				(nextStack[catKey] as string | string[]) = value;
 				changed = true;
+
+				changes.push({
+					category: "convex",
+					message,
+				});
 			}
 		}
 	} else {
@@ -214,6 +223,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 			notes.runtime.hasIssue = true;
 			nextStack.runtime = DEFAULT_STACK.runtime;
 			changed = true;
+			changes.push({
+				category: "runtime",
+				message: "Runtime set to 'Bun' (None is only for Convex)",
+			});
 		}
 		if (nextStack.api === "none") {
 			notes.api.notes.push(
@@ -222,6 +235,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 			notes.api.hasIssue = true;
 			nextStack.api = DEFAULT_STACK.api;
 			changed = true;
+			changes.push({
+				category: "api",
+				message: "API set to 'tRPC' (None is only for Convex)",
+			});
 		}
 
 		if (nextStack.database === "none") {
@@ -236,6 +253,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.orm.hasIssue = true;
 				nextStack.orm = "none";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "ORM set to 'None' (requires a database)",
+				});
 			}
 			if (nextStack.auth === "true") {
 				notes.database.notes.push(
@@ -248,6 +269,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.auth.hasIssue = true;
 				nextStack.auth = "false";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "Authentication disabled (requires a database)",
+				});
 			}
 			if (nextStack.dbSetup !== "none") {
 				notes.database.notes.push(
@@ -260,28 +285,44 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.dbSetup.hasIssue = true;
 				nextStack.dbSetup = "none";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "DB Setup set to 'None' (requires a database)",
+				});
 			}
 		} else if (nextStack.database === "mongodb") {
 			if (nextStack.orm !== "prisma" && nextStack.orm !== "mongoose") {
 				notes.database.notes.push(
 					"MongoDB requires Prisma or Mongoose ORM. Prisma will be selected.",
 				);
-			notes.orm.notes.push("MongoDB requires Prisma or Mongoose ORM. Prisma will be selected.");
+				notes.orm.notes.push(
+					"MongoDB requires Prisma or Mongoose ORM. Prisma will be selected.",
+				);
 				notes.database.hasIssue = true;
 				notes.orm.hasIssue = true;
 				nextStack.orm = "prisma";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "ORM set to 'Prisma' (MongoDB requires Prisma or Mongoose)",
+				});
 			}
 		} else {
 			if (nextStack.orm === "mongoose") {
 				notes.database.notes.push(
 					"Relational databases are not compatible with Mongoose ORM",
 				);
-			notes.orm.notes.push("Relational databases are not compatible with Mongoose ORM");
+				notes.orm.notes.push(
+					"Relational databases are not compatible with Mongoose ORM",
+				);
 				notes.database.hasIssue = true;
 				notes.orm.hasIssue = true;
 				nextStack.orm = "prisma";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "ORM set to 'Prisma' (Mongoose only works with MongoDB)",
+				});
 			}
 			if (nextStack.dbSetup === "mongodb-atlas") {
 				notes.database.notes.push(
@@ -294,6 +335,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.dbSetup.hasIssue = true;
 				nextStack.dbSetup = "none";
 				changed = true;
+				changes.push({
+					category: "database",
+					message: "DB Setup reset to 'None' (MongoDB Atlas requires MongoDB)",
+				});
 			}
 		}
 
@@ -307,6 +352,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.database.hasIssue = true;
 				nextStack.database = "sqlite";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message: "Database set to 'SQLite' (required by Turso)",
+				});
 			}
 			if (nextStack.orm !== "drizzle") {
 				notes.dbSetup.notes.push(
@@ -319,6 +368,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.orm.hasIssue = true;
 				nextStack.orm = "drizzle";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message: "ORM set to 'Drizzle' (required by Turso)",
+				});
 			}
 		} else if (nextStack.dbSetup === "prisma-postgres") {
 			if (nextStack.database !== "postgres") {
@@ -330,6 +383,11 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.database.hasIssue = true;
 				nextStack.database = "postgres";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message:
+						"Database set to 'PostgreSQL' (required by Prisma PostgreSQL setup)",
+				});
 			}
 			if (nextStack.orm !== "prisma") {
 				notes.dbSetup.notes.push("Requires Prisma ORM. It will be selected.");
@@ -340,6 +398,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.orm.hasIssue = true;
 				nextStack.orm = "prisma";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message: "ORM set to 'Prisma' (required by Prisma PostgreSQL setup)",
+				});
 			}
 		} else if (nextStack.dbSetup === "mongodb-atlas") {
 			if (nextStack.database !== "mongodb") {
@@ -351,9 +413,16 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.database.hasIssue = true;
 				nextStack.database = "mongodb";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message:
+						"Database set to 'MongoDB' (required by MongoDB Atlas setup)",
+				});
 			}
 			if (nextStack.orm !== "prisma" && nextStack.orm !== "mongoose") {
-			notes.dbSetup.notes.push("Requires Prisma or Mongoose ORM. Prisma will be selected.");
+				notes.dbSetup.notes.push(
+					"Requires Prisma or Mongoose ORM. Prisma will be selected.",
+				);
 				notes.orm.notes.push(
 					"MongoDB Atlas setup requires Prisma or Mongoose ORM. Prisma will be selected.",
 				);
@@ -361,6 +430,11 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.orm.hasIssue = true;
 				nextStack.orm = "prisma";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message:
+						"ORM set to 'Prisma' (MongoDB Atlas requires Prisma or Mongoose)",
+				});
 			}
 		} else if (nextStack.dbSetup === "neon") {
 			if (nextStack.database !== "postgres") {
@@ -374,6 +448,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.database.hasIssue = true;
 				nextStack.database = "postgres";
 				changed = true;
+				changes.push({
+					category: "dbSetup",
+					message: "Database set to 'PostgreSQL' (required by Neon)",
+				});
 			}
 		}
 
@@ -391,6 +469,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 			notes.frontend.hasIssue = true;
 			nextStack.api = "orpc";
 			changed = true;
+			changes.push({
+				category: "api",
+				message: `API set to 'oRPC' (required by ${frontendName})`,
+			});
 		}
 
 		const incompatibleAddons: string[] = [];
@@ -407,6 +489,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 			);
 			notes.frontend.hasIssue = true;
 			notes.addons.hasIssue = true;
+			changes.push({
+				category: "addons",
+				message: "PWA addon removed (requires TanStack or React Router)",
+			});
 		}
 		if (!isTauriCompat && nextStack.addons.includes("tauri")) {
 			incompatibleAddons.push("tauri");
@@ -418,6 +504,10 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 			);
 			notes.frontend.hasIssue = true;
 			notes.addons.hasIssue = true;
+			changes.push({
+				category: "addons",
+				message: "Tauri addon removed (requires compatible frontend)",
+			});
 		}
 
 		const originalAddonsLength = nextStack.addons.length;
@@ -453,21 +543,44 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				notes.frontend.hasIssue = true;
 				notes.examples.hasIssue = true;
 				incompatibleExamples.push(...nextStack.examples);
+				changes.push({
+					category: "examples",
+					message: "Examples removed (not supported with Native-only frontend)",
+				});
 			}
 		} else {
 			if (!isWeb) {
-				if (nextStack.examples.includes("todo"))
+				if (nextStack.examples.includes("todo")) {
 					incompatibleExamples.push("todo");
-				if (nextStack.examples.includes("ai")) incompatibleExamples.push("ai");
+					changes.push({
+						category: "examples",
+						message: "Todo example removed (requires web frontend)",
+					});
+				}
+				if (nextStack.examples.includes("ai")) {
+					incompatibleExamples.push("ai");
+					changes.push({
+						category: "examples",
+						message: "AI example removed (requires web frontend)",
+					});
+				}
 			}
 			if (
 				nextStack.database === "none" &&
 				nextStack.examples.includes("todo")
 			) {
 				incompatibleExamples.push("todo");
+				changes.push({
+					category: "examples",
+					message: "Todo example removed (requires a database)",
+				});
 			}
 			if (nextStack.backend === "elysia" && nextStack.examples.includes("ai")) {
 				incompatibleExamples.push("ai");
+				changes.push({
+					category: "examples",
+					message: "AI example removed (not compatible with Elysia)",
+				});
 			}
 		}
 
@@ -504,13 +617,13 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 				nextStack.backend === "elysia" &&
 				uniqueIncompatibleExamples.includes("ai")
 			) {
-			notes.backendFramework.notes.push(
+				notes.backend.notes.push(
 					"AI example is not compatible with Elysia. It will be removed.",
 				);
 				notes.examples.notes.push(
 					"AI example is not compatible with Elysia. It will be removed.",
 				);
-			notes.backendFramework.hasIssue = true;
+				notes.backend.hasIssue = true;
 				notes.examples.hasIssue = true;
 			}
 
@@ -525,6 +638,25 @@ const analyzeStackCompatibility = (stack: StackState): CompatibilityResult => {
 	return {
 		adjustedStack: changed ? nextStack : null,
 		notes,
+		changes,
+	};
+};
+
+const getCompatibilityRules = (stack: StackState) => {
+	const isConvex = stack.backend === "convex";
+	const hasWebFrontendSelected = hasWebFrontend(stack.frontend);
+	const hasNativeOnly =
+		hasNativeFrontend(stack.frontend) && !hasWebFrontendSelected;
+
+	return {
+		isConvex,
+		hasWebFrontend: hasWebFrontendSelected,
+		hasNativeFrontend: hasNativeFrontend(stack.frontend),
+		hasNativeOnly,
+		hasPWACompatible: hasPWACompatibleFrontend(stack.frontend),
+		hasTauriCompatible: hasTauriCompatibleFrontend(stack.frontend),
+		hasNuxtOrSvelte:
+			stack.frontend.includes("nuxt") || stack.frontend.includes("svelte"),
 	};
 };
 
@@ -676,215 +808,286 @@ const StackArchitect = () => {
 	const [activeCategory, setActiveCategory] = useState<string | null>(
 		CATEGORY_ORDER[0],
 	);
+	const [lastChanges, setLastChanges] = useState<
+		Array<{ category: string; message: string }>
+	>([]);
 
 	const sectionRefs = useRef<Record<string, HTMLElement | null>>({});
 	const contentRef = useRef<HTMLDivElement>(null);
 
-	const compatibilityAnalysis = analyzeStackCompatibility(stack);
+	const compatibilityAnalysis = useMemo(
-	const isConvexSelected = stack.backend === "convex";
+		() => analyzeStackCompatibility(stack),
-	const currentHasWebFrontend = hasWebFrontend(stack.frontend);
+		[stack],
-	const currentHasNativeFrontend = hasNativeFrontend(stack.frontend);
-	const currentHasPWACompatibleFrontend = hasPWACompatibleFrontend(
-		stack.frontend,
-	);
-	const currentHasTauriCompatibleFrontend = hasTauriCompatibleFrontend(
-		stack.frontend,
 	);
 
-	const disabledReasons = (() => {
+	const rules = useMemo(() => getCompatibilityRules(stack), [stack]);
+
+	const disabledReasons = useMemo(() => {
 		const reasons = new Map<string, string>();
-		const currentStack = stack;
+
+		const addRule = (category: string, techId: string, reason: string) => {
+			reasons.set(`${category}-${techId}`, reason);
+		};
 
 		for (const category of CATEGORY_ORDER) {
-			const categoryOptions = TECH_OPTIONS[category] || [];
+			const options = TECH_OPTIONS[category] || [];
 			const catKey = category as keyof StackState;
 
-			for (const tech of categoryOptions) {
+			for (const tech of options) {
-				let reason: string | null = null;
 				const techId = tech.id;
 
-				if (isConvexSelected) {
+				if (rules.isConvex) {
 					if (
-						[
+						["runtime", "database", "orm", "api", "auth", "dbSetup"].includes(
-							"runtime",
+							catKey,
-							"database",
+						)
-							"orm",
-							"api",
-							"auth",
-							"dbSetup",
-							"examples",
-						].includes(catKey)
 					) {
-						const convexDefaults: Record<string, string | string[]> = {
+						const convexDefaults: Record<string, string> = {
 							runtime: "none",
 							database: "none",
 							orm: "none",
 							api: "none",
 							auth: "false",
 							dbSetup: "none",
-							examples: ["todo"],
 						};
-						const requiredValue = convexDefaults[catKey];
+
-						if (
+						const requiredValue = convexDefaults[catKey as string];
-							typeof requiredValue === "string" &&
+						if (techId !== requiredValue && techId !== "none") {
-							techId !== requiredValue &&
+							addRule(
-							techId !== "none"
+								category,
-						) {
+								techId,
-							if (!(catKey === "dbSetup" && techId === "none")) {
+								`Convex backend requires ${getCategoryDisplayName(catKey)} to be '${requiredValue}'.`,
-								reason = `Convex backend requires ${getCategoryDisplayName(
+							);
-									catKey,
-								)} to be '${requiredValue}'.`;
 						}
-						} else if (Array.isArray(requiredValue)) {
+					}
+
 					if (catKey === "examples" && techId !== "todo") {
-								reason = "Convex backend only supports the 'Todo' example.";
+						addRule(
+							category,
+							techId,
+							"Convex backend only supports the 'Todo' example.",
+						);
 					}
+					continue;
 				}
+
+				if (catKey === "runtime" && techId === "none") {
+					addRule(
+						category,
+						techId,
+						"Runtime 'None' is only available with the Convex backend.",
+					);
 				}
-				} else {
-					if (catKey === "runtime" && techId === "none")
-						reason =
-							"Runtime 'None' is only available with the Convex backend.";
-					if (catKey === "api" && techId === "none")
-						reason = "API 'None' is only available with the Convex backend.";
 
 				if (catKey === "api") {
-						if (
+					if (techId === "none") {
-							techId === "trpc" &&
+						addRule(
-							(currentStack.frontend.includes("nuxt") ||
+							category,
-								currentStack.frontend.includes("svelte"))
+							techId,
-						) {
+							"API 'None' is only available with the Convex backend.",
-							reason = `tRPC is not supported with ${
+						);
-								currentStack.frontend.includes("nuxt") ? "Nuxt" : "Svelte"
+					}
-							}. Use oRPC instead.`;
+
+					if (techId === "trpc" && rules.hasNuxtOrSvelte) {
+						const frontendName = stack.frontend.includes("nuxt")
+							? "Nuxt"
+							: "Svelte";
+						addRule(
+							category,
+							techId,
+							`tRPC is not supported with ${frontendName}. Use oRPC instead.`,
+						);
 					}
 				}
 
 				if (catKey === "orm") {
-						if (currentStack.database === "none" && techId !== "none")
+					if (stack.database === "none" && techId !== "none") {
-							reason = "Select a database to enable ORM options.";
+						addRule(
-						if (
+							category,
-							currentStack.database === "mongodb" &&
+							techId,
-							techId !== "prisma" &&
+							"Select a database to enable ORM options.",
-							techId !== "mongoose" &&
+						);
-							techId !== "none"
-						)
-							reason = "MongoDB requires the Prisma or Mongoose ORM.";
-						if (
-							currentStack.dbSetup === "turso" &&
-							techId !== "drizzle" &&
-							techId !== "none"
-						)
-							reason = "Turso DB setup requires the Drizzle ORM.";
-						if (
-							currentStack.dbSetup === "prisma-postgres" &&
-							techId !== "prisma" &&
-							techId !== "none"
-						)
-							reason = "Prisma PostgreSQL setup requires Prisma ORM.";
-						if (
-							currentStack.dbSetup === "mongodb-atlas" &&
-							techId !== "prisma" &&
-							techId !== "mongoose" &&
-							techId !== "none"
-						)
-							reason = "MongoDB Atlas setup requires Prisma or Mongoose ORM.";
-
-						if (techId === "none") {
-							if (currentStack.database === "mongodb")
-								reason =  "MongoDB requires Prisma or Mongoose ORM.";
-							if (currentStack.dbSetup === "turso")
-								reason = "Turso DB setup requires Drizzle ORM.";
-							if (currentStack.dbSetup === "prisma-postgres")
-								reason = "This DB setup requires Prisma ORM.";
 					}
 
-						if (techId === "mongoose" && (currentStack.database !== "mongodb")) {
+					if (
-							reason = "Mongoose ORM is not compatible with relational databases.";
+						stack.database === "mongodb" &&
+						techId !== "prisma" &&
+						techId !== "mongoose" &&
+						techId !== "none"
+					) {
+						addRule(
+							category,
+							techId,
+							"MongoDB requires the Prisma or Mongoose ORM.",
+						);
+					}
+
+					if (
+						stack.dbSetup === "turso" &&
+						techId !== "drizzle" &&
+						techId !== "none"
+					) {
+						addRule(
+							category,
+							techId,
+							"Turso DB setup requires the Drizzle ORM.",
+						);
+					}
+
+					if (
+						stack.dbSetup === "prisma-postgres" &&
+						techId !== "prisma" &&
+						techId !== "none"
+					) {
+						addRule(
+							category,
+							techId,
+							"Prisma PostgreSQL setup requires Prisma ORM.",
+						);
+					}
+
+					if (
+						stack.dbSetup === "mongodb-atlas" &&
+						techId !== "prisma" &&
+						techId !== "mongoose" &&
+						techId !== "none"
+					) {
+						addRule(
+							category,
+							techId,
+							"MongoDB Atlas setup requires Prisma or Mongoose ORM.",
+						);
+					}
+
+					if (techId === "none") {
+						if (stack.database === "mongodb") {
+							addRule(
+								category,
+								techId,
+								"MongoDB requires Prisma or Mongoose ORM.",
+							);
+						}
+						if (stack.dbSetup === "turso") {
+							addRule(category, techId, "Turso DB setup requires Drizzle ORM.");
+						}
+						if (stack.dbSetup === "prisma-postgres") {
+							addRule(category, techId, "This DB setup requires Prisma ORM.");
+						}
+					}
+
+					if (techId === "mongoose" && stack.database !== "mongodb") {
+						addRule(
+							category,
+							techId,
+							"Mongoose ORM is not compatible with relational databases.",
+						);
 					}
 				}
 
 				if (catKey === "dbSetup" && techId !== "none") {
-						if (currentStack.database === "none")
+					if (stack.database === "none") {
-							reason = "Select a database before choosing a cloud setup.";
+						addRule(
+							category,
+							techId,
+							"Select a database before choosing a cloud setup.",
+						);
+					}
 
 					if (techId === "turso") {
-							if (
+						if (stack.database !== "sqlite" && stack.database !== "none") {
-								currentStack.database !== "sqlite" &&
+							addRule(category, techId, "Turso requires SQLite database.");
-								currentStack.database !== "none"
+						}
-							)
+						if (stack.orm !== "drizzle" && stack.orm !== "none") {
-								reason = "Turso requires SQLite database.";
+							addRule(category, techId, "Turso requires Drizzle ORM.");
-							if (currentStack.orm !== "drizzle" && currentStack.orm !== "none")
+						}
-								reason = "Turso requires Drizzle ORM.";
 					} else if (techId === "prisma-postgres") {
-							if (
+						if (stack.database !== "postgres" && stack.database !== "none") {
-								currentStack.database !== "postgres" &&
+							addRule(category, techId, "Requires PostgreSQL database.");
-								currentStack.database !== "none"
+						}
-							)
+						if (stack.orm !== "prisma" && stack.orm !== "none") {
-								reason = "Requires PostgreSQL database.";
+							addRule(category, techId, "Requires Prisma ORM.");
-							if (currentStack.orm !== "prisma" && currentStack.orm !== "none")
+						}
-								reason = "Requires Prisma ORM.";
 					} else if (techId === "mongodb-atlas") {
+						if (stack.database !== "mongodb" && stack.database !== "none") {
+							addRule(category, techId, "Requires MongoDB database.");
+						}
 						if (
-								currentStack.database !== "mongodb" &&
+							stack.orm !== "prisma" &&
-								currentStack.database !== "none"
+							stack.orm !== "mongoose" &&
-							)
+							stack.orm !== "none"
-								reason = "Requires MongoDB database.";
+						) {
-							if (currentStack.orm !== "prisma" && currentStack.orm !== "mongoose" && currentStack.orm !== "none")
+							addRule(category, techId, "Requires Prisma or Mongoose ORM.");
-								reason = "Requires Prisma or Mongoose ORM.";
+						}
 					} else if (techId === "neon") {
-							if (
+						if (stack.database !== "postgres" && stack.database !== "none") {
-								currentStack.database !== "postgres" &&
+							addRule(category, techId, "Requires PostgreSQL database.");
-								currentStack.database !== "none"
+						}
-							)
-								reason = "Requires PostgreSQL database.";
 					}
 				}
 
 				if (
 					catKey === "auth" &&
 					techId === "true" &&
-						currentStack.database === "none"
+					stack.database === "none"
 				) {
-						reason = "Authentication requires a database.";
+					addRule(category, techId, "Authentication requires a database.");
 				}
 
 				if (catKey === "addons") {
-						if (techId === "pwa" && !currentHasPWACompatibleFrontend) {
+					if (techId === "pwa" && !rules.hasPWACompatible) {
-							reason = "Requires TanStack Router or React Router frontend.";
+						addRule(
+							category,
+							techId,
+							"Requires TanStack Router or React Router frontend.",
+						);
 					}
-						if (techId === "tauri" && !currentHasTauriCompatibleFrontend) {
+
-							reason =
+					if (techId === "tauri" && !rules.hasTauriCompatible) {
-								"Requires TanStack Router, React Router, Nuxt or Svelte frontend.";
+						addRule(
+							category,
+							techId,
+							"Requires TanStack Router, React Router, Nuxt or Svelte frontend.",
+						);
 					}
 				}
 
 				if (catKey === "examples") {
-						const isNativeOnly =
+					if (rules.hasNativeOnly) {
-							currentHasNativeFrontend && !currentHasWebFrontend;
+						addRule(
-						if (isNativeOnly) {
+							category,
-							reason = "Examples are not supported with Native-only frontend.";
+							techId,
-						} else if (
+							"Examples are not supported with Native-only frontend.",
+						);
+					} else {
+						if (
 							(techId === "todo" || techId === "ai") &&
-							!currentHasWebFrontend
+							!rules.hasWebFrontend
 						) {
-							reason =
+							addRule(
-								"Requires a web frontend (TanStack Router, React Router, etc.).";
+								category,
-						} else if (techId === "todo" && currentStack.database === "none") {
+								techId,
-							reason = "Todo example requires a database.";
+								"Requires a web frontend (TanStack Router, React Router, etc.).",
-						} else if (techId === "ai" && currentStack.backend === "elysia") {
+							);
-							reason = "AI example is not compatible with Elysia backend.";
+						}
+
+						if (techId === "todo" && stack.database === "none") {
+							addRule(category, techId, "Todo example requires a database.");
+						}
+
+						if (techId === "ai" && stack.backend === "elysia") {
+							addRule(
+								category,
+								techId,
+								"AI example is not compatible with Elysia backend.",
+							);
+						}
+					}
 				}
 			}
 		}
 
-				if (reason) {
-					reasons.set(`${category}-${techId}`, reason);
-				}
-			}
-		}
 		return reasons;
-	})();
+	}, [stack, rules]);
 
 	const selectedBadges = (() => {
 		const badges: React.ReactNode[] = [];
@@ -968,8 +1171,10 @@ const StackArchitect = () => {
 		}
 	}, []);
 
+	// biome-ignore lint/correctness/useExhaustiveDependencies: <explanation>
 	useEffect(() => {
 		if (compatibilityAnalysis.adjustedStack) {
+			setLastChanges(compatibilityAnalysis.changes);
 			setStack(compatibilityAnalysis.adjustedStack);
 		}
 	}, [compatibilityAnalysis.adjustedStack, setStack]);
@@ -1089,6 +1294,7 @@ const StackArchitect = () => {
 	const saveCurrentStack = () => {
 		localStorage.setItem("betterTStackPreference", JSON.stringify(stack));
 		setLastSavedStack(stack);
+		toast.success("Your stack configuration has been saved");
 	};
 
 	const loadSavedStack = () => {
@@ -1098,6 +1304,7 @@ const StackArchitect = () => {
 			setShowPresets(false);
 			setActiveCategory(CATEGORY_ORDER[0]);
 			contentRef.current?.scrollTo(0, 0);
+			toast.success("Saved configuration loaded");
 		}
 	};
 
@@ -1111,6 +1318,7 @@ const StackArchitect = () => {
 			setShowHelp(false);
 			setActiveCategory(CATEGORY_ORDER[0]);
 			contentRef.current?.scrollTo(0, 0);
+			toast.success(`Applied preset: ${preset.name}`);
 		}
 	};
 
@@ -1377,7 +1585,7 @@ const StackArchitect = () => {
 
 								const filteredOptions = categoryOptions.filter((tech) => {
 									if (
-										isConvexSelected &&
+										rules.isConvex &&
 										tech.id === "none" &&
 										["runtime", "database", "orm", "api", "dbSetup"].includes(
 											categoryKey,
@@ -1386,14 +1594,14 @@ const StackArchitect = () => {
 										return false;
 									}
 									if (
-										isConvexSelected &&
+										rules.isConvex &&
 										categoryKey === "auth" &&
 										tech.id === "false"
 									) {
 										return false;
 									}
 									if (
-										isConvexSelected &&
+										rules.isConvex &&
 										categoryKey === "examples" &&
 										tech.id !== "todo"
 									) {

apps/web/src/app/layout.tsx

@@ -4,6 +4,7 @@ import { Poppins } from "next/font/google";
 import { NuqsAdapter } from "nuqs/adapters/next/app";
 import type { ReactNode } from "react";
 import "./global.css";
+import { Toaster } from "@/components/ui/sonner";
 
 const poppins = Poppins({
 	subsets: ["latin"],
@@ -96,6 +97,7 @@ export default function Layout({ children }: { children: ReactNode }) {
 					}}
 				>
 					<NuqsAdapter>{children}</NuqsAdapter>
+					<Toaster />
 				</RootProvider>
 			</body>
 		</html>

apps/web/src/components/ui/sonner.tsx

@@ -0,0 +1,25 @@
+"use client";
+
+import { useTheme } from "next-themes";
+import { Toaster as Sonner, type ToasterProps } from "sonner";
+
+const Toaster = ({ ...props }: ToasterProps) => {
+	const { theme = "system" } = useTheme();
+
+	return (
+		<Sonner
+			theme={theme as ToasterProps["theme"]}
+			className="toaster group"
+			style={
+				{
+					"--normal-bg": "var(--popover)",
+					"--normal-text": "var(--popover-foreground)",
+					"--normal-border": "var(--border)",
+				} as React.CSSProperties
+			}
+			{...props}
+		/>
+	);
+};
+
+export { Toaster };

bun.lock

@@ -14,7 +14,7 @@
     },
     "apps/cli": {
       "name": "create-better-t-stack",
-      "version": "2.5.1",
+      "version": "2.6.1",
       "bin": {
         "create-better-t-stack": "dist/index.js",
       },
@@ -54,10 +54,12 @@
         "lucide-react": "^0.503.0",
         "motion": "^12.8.0",
         "next": "15.3.1",
+        "next-themes": "^0.4.6",
         "nuqs": "^2.4.3",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
         "react-tweet": "^3.2.2",
+        "sonner": "^2.0.3",
         "tailwind-merge": "^3.2.0",
       },
       "devDependencies": {
@@ -1524,6 +1526,8 @@
 
     "slice-ansi": ["slice-ansi@5.0.0", "", { "dependencies": { "ansi-styles": "^6.0.0", "is-fullwidth-code-point": "^4.0.0" } }, "sha512-FC+lgizVPfie0kkhqUScwRu1O/lF6NOgJmlCgK+/LYxDCTk8sGelYaHDhFcDN+Sn3Cv+3VSa4Byeo+IMCzpMgQ=="],
 
+    "sonner": ["sonner@2.0.3", "", { "peerDependencies": { "react": "^18.0.0 || ^19.0.0 || ^19.0.0-rc", "react-dom": "^18.0.0 || ^19.0.0 || ^19.0.0-rc" } }, "sha512-njQ4Hht92m0sMqqHVDL32V2Oun9W1+PHO9NDv9FHfJjT3JT22IG4Jpo3FPQy+mouRKCXFWO+r67v6MrHX2zeIA=="],
+
     "source-map": ["source-map@0.6.1", "", {}, "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="],
 
     "source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],