diff --git a/packages/svelte-vscode/package.json b/packages/svelte-vscode/package.json
index 574715f96..f97cf561f 100644
--- a/packages/svelte-vscode/package.json
+++ b/packages/svelte-vscode/package.json
@@ -741,8 +741,10 @@
     "devDependencies": {
         "@types/lodash": "^4.14.116",
         "@types/node": "^18.0.0",
+        "@types/semver": "^7.7.0",
         "@types/vscode": "^1.67",
         "js-yaml": "^3.14.0",
+        "semver": "^7.7.2",
         "tslib": "^2.4.0",
         "typescript": "^5.8.2",
         "vitest": "^3.2.4",
diff --git a/packages/svelte-vscode/src/sveltekit/utils.ts b/packages/svelte-vscode/src/sveltekit/utils.ts
index 6ca33f796..cce8e2de9 100644
--- a/packages/svelte-vscode/src/sveltekit/utils.ts
+++ b/packages/svelte-vscode/src/sveltekit/utils.ts
@@ -2,6 +2,7 @@ import { TextDecoder } from 'util';
 import * as path from 'path';
 import { Uri, workspace } from 'vscode';
 import type { GenerateConfig } from './generateFiles/types';
+import { atLeast } from '../version';
 
 export async function fileExists(file: string) {
     try {
@@ -31,10 +32,20 @@ export async function checkProjectKind(path: string): Promise<GenerateConfig['ki
     const jsconfig = await findFile(path, 'jsconfig.json');
 
     const svelteVersion = await getVersionFromPackageJson('svelte');
-    const withRunes = svelteVersion ? versionAtLeast(svelteVersion, 5) : true;
+    const withRunes = atLeast({
+        packageName: 'svelte',
+        versionMin: '5',
+        versionToCheck: svelteVersion ?? '',
+        fallback: true
+    });
 
     const svelteKitVersion = await getVersionFromPackageJson('@sveltejs/kit');
-    let withProps = svelteKitVersion ? versionAtLeast(svelteKitVersion, 2, 16) : true;
+    let withProps = atLeast({
+        packageName: '@sveltejs/kit',
+        versionMin: '2.16',
+        versionToCheck: svelteKitVersion ?? '',
+        fallback: true
+    });
 
     const withTs = !!tsconfig && (!jsconfig || tsconfig.length >= jsconfig.length);
     let withSatisfies = false;
@@ -44,7 +55,12 @@ export async function checkProjectKind(path: string): Promise<GenerateConfig['ki
                 paths: [tsconfig]
             });
             const { version } = require(packageJSONPath);
-            withSatisfies = version ? versionAtLeast(version, 4, 9) : true;
+            withSatisfies = atLeast({
+                packageName: 'typescript',
+                versionMin: '4.9',
+                versionToCheck: version,
+                fallback: true
+            });
         } catch (e) {
             withSatisfies = true;
         }
@@ -58,14 +74,6 @@ export async function checkProjectKind(path: string): Promise<GenerateConfig['ki
     };
 }
 
-function versionAtLeast(version: string, major: number, minor?: number): boolean {
-    const [majorVersion, minorVersion] = version.split('.');
-    return (
-        (Number(majorVersion) === major && Number(minorVersion) >= (minor ?? 0)) ||
-        Number(majorVersion) > major
-    );
-}
-
 export async function getVersionFromPackageJson(packageName: string): Promise<string | undefined> {
     const packageJsonList = await workspace.findFiles('**/package.json', '**/node_modules/**');
 
diff --git a/packages/svelte-vscode/src/version.ts b/packages/svelte-vscode/src/version.ts
new file mode 100644
index 000000000..7db8b318d
--- /dev/null
+++ b/packages/svelte-vscode/src/version.ts
@@ -0,0 +1,51 @@
+import { lt, coerce, gte } from 'semver';
+
+/**
+ * @example
+ * const supported = atLeast({
+ *     packageName: 'node',
+ *     versionMin: '18.3',
+ *     versionToCheck: process.versions.node
+ *     fallback: true // optional
+ * });
+ */
+export function atLeast(o: {
+    packageName: string;
+    versionMin: string;
+    versionToCheck: string;
+    fallback: boolean;
+}): boolean;
+export function atLeast(o: {
+    packageName: string;
+    versionMin: string;
+    versionToCheck: string;
+    fallback?: undefined;
+}): boolean | undefined;
+
+// Implementation
+export function atLeast(o: {
+    packageName: string;
+    versionMin: string;
+    versionToCheck: string;
+    fallback?: boolean;
+}): boolean | undefined {
+    const { packageName, versionMin, versionToCheck, fallback } = o;
+    if (versionToCheck === undefined || versionToCheck === '') return fallback;
+
+    if (
+        versionToCheck.includes('latest') ||
+        versionToCheck.includes('catalog:') ||
+        versionToCheck.includes('http')
+    ) {
+        console.warn(`Version '${versionToCheck}' for '${packageName}' is not supported`);
+        return fallback;
+    }
+    try {
+        const vMin = coerce(versionMin);
+        const vToCheck = coerce(versionToCheck);
+        if (vMin && vToCheck) {
+            return gte(vToCheck, vMin);
+        }
+    } catch (error) {}
+    return fallback;
+}
diff --git a/packages/svelte-vscode/test/version.spec.ts b/packages/svelte-vscode/test/version.spec.ts
new file mode 100644
index 000000000..f22b9c721
--- /dev/null
+++ b/packages/svelte-vscode/test/version.spec.ts
@@ -0,0 +1,41 @@
+import { expect, describe, it } from 'vitest';
+import { atLeast } from '../src/version';
+
+describe('atLeast', () => {
+    const combinationsAtLeast = [
+        { min: '5', version: '>=5', supported: true },
+        { min: '5', version: '>=5.0.0', supported: true },
+        { min: '5', version: '5.0.0', supported: true },
+        { min: '5', version: '5', supported: true },
+        { min: '5', version: '4', supported: false },
+        { min: '5', version: '4.9', supported: false },
+        { min: '5', version: '', supported: undefined },
+        { min: '5', version: 'catalog:', supported: undefined },
+        { min: '5', version: 'latest', supported: undefined },
+        { min: '5', version: 'latest', fallback: true, supported: true },
+        { min: '5', version: 'latest', fallback: false, supported: false }
+    ];
+    it.each(combinationsAtLeast)(
+        '(min $min, $version, $fallback) => $supported',
+        ({ min, version, supported, fallback }) => {
+            if (fallback !== undefined) {
+                expect(
+                    atLeast({
+                        packageName: 'myPkg',
+                        versionMin: min,
+                        versionToCheck: version,
+                        fallback
+                    })
+                ).toEqual(supported);
+            } else {
+                expect(
+                    atLeast({
+                        packageName: 'myPkg',
+                        versionMin: min,
+                        versionToCheck: version
+                    })
+                ).toEqual(supported);
+            }
+        }
+    );
+});
diff --git a/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/MustacheTag.ts b/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/MustacheTag.ts
index 9e888b90c..ab132e67e 100644
--- a/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/MustacheTag.ts
+++ b/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/MustacheTag.ts
@@ -10,6 +10,13 @@ export function handleMustacheTag(str: MagicString, node: BaseNode, parent: Base
         // handled inside Attribute.ts / StyleDirective.ts
         return;
     }
+    const text = str.original.slice(node.start + 1, node.end - 1);
+    if (text.trimStart().startsWith('{')) {
+        // possibly an object literal, wrapping it in parentheses so it's treated as an expression
+        str.overwrite(node.start, node.start + 1, ';(', { contentOnly: true });
+        str.overwrite(node.end - 1, node.end, ');', { contentOnly: true });
+        return;
+    }
     str.overwrite(node.start, node.start + 1, '', { contentOnly: true });
     str.overwrite(node.end - 1, node.end, ';', { contentOnly: true });
 }
diff --git a/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/expectedv2.js b/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/expectedv2.js
new file mode 100644
index 000000000..ce8c12ef9
--- /dev/null
+++ b/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/expectedv2.js
@@ -0,0 +1,5 @@
+;({ 
+    toString() { return "Hello World" } 
+});
+
+;({ a: '' }['a']);
\ No newline at end of file
diff --git a/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/input.svelte b/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/input.svelte
new file mode 100644
index 000000000..0d001f271
--- /dev/null
+++ b/packages/svelte2tsx/test/htmlx2jsx/samples/mustache-tag-object-literal/input.svelte
@@ -0,0 +1,5 @@
+{{ 
+    toString() { return "Hello World" } 
+}}
+
+{{ a: '' }['a']}
\ No newline at end of file
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 29ea244d6..38c0cb205 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -207,12 +207,18 @@ importers:
       '@types/node':
         specifier: ^18.0.0
         version: 18.19.46
+      '@types/semver':
+        specifier: ^7.7.0
+        version: 7.7.0
       '@types/vscode':
         specifier: ^1.67
         version: 1.78.0
       js-yaml:
         specifier: ^3.14.0
         version: 3.14.1
+      semver:
+        specifier: ^7.7.2
+        version: 7.7.2
       tslib:
         specifier: ^2.4.0
         version: 2.5.2
@@ -771,6 +777,9 @@ packages:
   '@types/sade@1.7.4':
     resolution: {integrity: sha512-6ys13kmtlY0aIOz4KtMdeBD9BHs6vSE3aRcj4vAZqXjypT2el8WZt6799CMjElVgh1cbOH/t3vrpQ4IpwytcPA==}
 
+  '@types/semver@7.7.0':
+    resolution: {integrity: sha512-k107IF4+Xr7UHjwDc7Cfd6PRQfbdkiRabXGRjo07b4WyPahFBZCZ1sE+BNxYIJPPg73UkfOsVOLwqVc/6ETrIA==}
+
   '@types/sinon@7.5.2':
     resolution: {integrity: sha512-T+m89VdXj/eidZyejvmoP9jivXgBDdkOSBVQjU9kF349NEx10QdPNGxHeZUaj1IlJ32/ewdyXJjnJxyxJroYwg==}
 
@@ -1561,6 +1570,11 @@ packages:
     engines: {node: '>=10'}
     hasBin: true
 
+  semver@7.7.2:
+    resolution: {integrity: sha512-RF0Fw+rO5AMf9MAyaRXI4AV0Ulj5lMHqVxxdSgiVbixSCXoEmmX/jk0CuJw4+3SqroYO9VoUh+HcuJivvtJemA==}
+    engines: {node: '>=10'}
+    hasBin: true
+
   serialize-javascript@6.0.0:
     resolution: {integrity: sha512-Qr3TosvguFt8ePWqsvRfrKyQXIiW+nGbYpy8XK24NQHE83caxWt+mIymTT19DGFbNWNLfEwsrkSmN64lVWB9ag==}
 
@@ -2227,6 +2241,8 @@ snapshots:
     dependencies:
       '@types/mri': 1.1.1
 
+  '@types/semver@7.7.0': {}
+
   '@types/sinon@7.5.2': {}
 
   '@types/unist@2.0.6': {}
@@ -3037,6 +3053,8 @@ snapshots:
     dependencies:
       lru-cache: 6.0.0
 
+  semver@7.7.2: {}
+
   serialize-javascript@6.0.0:
     dependencies:
       randombytes: 2.1.0
@@ -3290,7 +3308,7 @@ snapshots:
   vscode-languageclient@9.0.1:
     dependencies:
       minimatch: 5.1.6
-      semver: 7.5.1
+      semver: 7.7.2
       vscode-languageserver-protocol: 3.17.5
 
   vscode-languageserver-protocol@3.17.2:

<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head>
<title>pFad - Phonifier reborn</title>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
</head>
<body>
<h1>Pfad - The Proxy pFad of &#169; 2024 Garber Painting. All rights reserved.</h1>


<!-- Disclaimer -->
<p>Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.</p>
<br>
<p>Alternative Proxies:</p><p><a href="http://rainy.clevelandohioweatherforecast.com/php-proxy/index.php?q=https://github.com/sveltejs/language-tools/compare/svelte2tsx-0.7.41...master.diff" target="_blank">Alternative Proxy</a></p><p><a href="http://rainy.clevelandohioweatherforecast.com/pFad/index.php?u=https://github.com/sveltejs/language-tools/compare/svelte2tsx-0.7.41...master.diff" target="_blank">pFad Proxy</a></p><p><a href="http://rainy.clevelandohioweatherforecast.com/pFad/v3index.php?u=https://github.com/sveltejs/language-tools/compare/svelte2tsx-0.7.41...master.diff" target="_blank">pFad v3 Proxy</a></p><p><a href="http://rainy.clevelandohioweatherforecast.com/pFad/v4index.php?u=https://github.com/sveltejs/language-tools/compare/svelte2tsx-0.7.41...master.diff" target="_blank">pFad v4 Proxy</a></p></body>
</html>