diff --git a/src/actions/admin-ads.ts b/src/actions/admin-ads.ts
index cfe0139b3f..e86399deeb 100644
--- a/src/actions/admin-ads.ts
+++ b/src/actions/admin-ads.ts
@@ -57,7 +57,7 @@ export async function updateAd(formData: FormData): Promise<void> {
 			id: Number(raw),
 			error: result.error.messageKey,
 		});
-		revalidatePath("/admin/ads/" + raw);
+		revalidatePath(`/admin/ads/${raw}`);
 		return;
 	}
 	redirect("/admin/ads");
diff --git a/src/actions/admin-articles.ts b/src/actions/admin-articles.ts
index 4ae7a9073c..52dd87bb26 100644
--- a/src/actions/admin-articles.ts
+++ b/src/actions/admin-articles.ts
@@ -54,7 +54,7 @@ export async function updateArticle(formData: FormData): Promise<void> {
 		{ action: "update", id, ...articleInput(formData) },
 	);
 	if (!result.ok) redirect("/admin/articles?error=Update failed");
-	revalidatePath("/admin/articles/" + id);
+	revalidatePath(`/admin/articles/${id}`);
 	redirect("/admin/articles");
 }
 
diff --git a/src/actions/admin-help.ts b/src/actions/admin-help.ts
index e1bd849740..280652edcb 100644
--- a/src/actions/admin-help.ts
+++ b/src/actions/admin-help.ts
@@ -60,7 +60,7 @@ export async function updateHelpQuestion(formData: FormData): Promise<void> {
 		{ action: "update", id, ...input },
 	);
 	if (!result.ok) {
-		revalidatePath("/admin/help-questions/" + id);
+		revalidatePath(`/admin/help-questions/${id}`);
 		return;
 	}
 	redirect("/admin/help-questions");
diff --git a/src/actions/admin-theme.ts b/src/actions/admin-theme.ts
index bcc5cbf826..a0a0f57838 100644
--- a/src/actions/admin-theme.ts
+++ b/src/actions/admin-theme.ts
@@ -49,7 +49,7 @@ export async function applyPreset(formData: FormData): Promise<void> {
 	if (result.ok) revalidatePath("/", "layout");
 	redirect(
 		result.ok
-			? "/admin/theme?preset=" + encodeURIComponent(name)
+			? `/admin/theme?preset=${encodeURIComponent(name)}`
 			: "/admin/theme",
 	);
 }
@@ -80,7 +80,7 @@ export async function applyCustomTheme(formData: FormData): Promise<void> {
 			: "";
 	redirect(
 		result.ok
-			? "/admin/theme?theme=" + encodeURIComponent(name)
+			? `/admin/theme?theme=${encodeURIComponent(name)}`
 			: "/admin/theme",
 	);
 }
diff --git a/src/features/housekeeping/domains/content/inbox-production.ts b/src/features/housekeeping/domains/content/inbox-production.ts
index 51f5920038..24d8b4285b 100644
--- a/src/features/housekeeping/domains/content/inbox-production.ts
+++ b/src/features/housekeeping/domains/content/inbox-production.ts
@@ -62,7 +62,7 @@ export async function loadContentInboxItems(
 			items.push({
 				sourceId,
 				itemId: item.id,
-				deduplicationKey: sourceId + ":" + routeId + ":" + item.id,
+				deduplicationKey: `${sourceId}:${routeId}:${item.id}`,
 				domain: "content",
 				capability: anyCapability(permission),
 				severity:
diff --git a/src/features/housekeeping/domains/content/queries/content-queries-production.ts b/src/features/housekeeping/domains/content/queries/content-queries-production.ts
index 7d58746904..14daa3afa2 100644
--- a/src/features/housekeeping/domains/content/queries/content-queries-production.ts
+++ b/src/features/housekeeping/domains/content/queries/content-queries-production.ts
@@ -283,7 +283,7 @@ async function mediaLibrary(
 		.map(({ name, metadata }) => ({
 			id: name,
 			title: name,
-			description: String(metadata.size) + " bytes",
+			description: `${String(metadata.size)} bytes`,
 			status: "stored",
 			updatedAt: metadata.mtime.toISOString(),
 			href: "/ase/content/media/library",
@@ -367,7 +367,7 @@ async function localizationFiles(
 			{
 				id: "cms",
 				title: "CMS translations",
-				status: String(locales.length) + " locales",
+				status: `${String(locales.length)} locales`,
 				href: "/ase/content/localization/cms",
 			},
 			{
diff --git a/src/features/housekeeping/domains/content/search-production.ts b/src/features/housekeeping/domains/content/search-production.ts
index 5130e72201..c56e170d3d 100644
--- a/src/features/housekeeping/domains/content/search-production.ts
+++ b/src/features/housekeeping/domains/content/search-production.ts
@@ -41,7 +41,7 @@ export async function loadContentSearchCandidates(
 		for (const item of result.data.items) {
 			if (!item.href) continue;
 			candidates.push({
-				id: routeId + ":" + item.id,
+				id: `${routeId}:${item.id}`,
 				title: item.title,
 				description: item.description ?? item.status,
 				href: item.href,
diff --git a/src/features/housekeeping/domains/content/services/mutation-runtime-database.ts b/src/features/housekeeping/domains/content/services/mutation-runtime-database.ts
index 4543102064..af4b423826 100644
--- a/src/features/housekeeping/domains/content/services/mutation-runtime-database.ts
+++ b/src/features/housekeeping/domains/content/services/mutation-runtime-database.ts
@@ -155,7 +155,7 @@ async function uniqueSlug(
 			.where(eq(WebsiteArticles.slug, candidate))
 			.limit(1);
 		if (!existing) return candidate;
-		candidate = base + "-" + suffix;
+		candidate = `${base}-${suffix}`;
 		suffix += 1;
 	}
 }
@@ -261,7 +261,7 @@ async function adChange(
 		await activity(
 			context,
 			"ad_create",
-			"Created advertisement #" + id + " (" + image + ")",
+			`Created advertisement #${id} (${image})`,
 			"website_ad",
 			Number(id),
 		);
@@ -279,7 +279,7 @@ async function adChange(
 		await activity(
 			context,
 			"ad_delete",
-			"Deleted advertisement #" + id,
+			`Deleted advertisement #${id}`,
 			"website_ad",
 			Number(id),
 		);
@@ -297,7 +297,7 @@ async function adChange(
 	await activity(
 		context,
 		"ad_update",
-		"Updated advertisement #" + id + " (" + image + ")",
+		`Updated advertisement #${id} (${image})`,
 		"website_ad",
 		Number(id),
 	);
@@ -661,7 +661,7 @@ async function tagChange(
 		await activity(
 			context,
 			"tag_create",
-			"Created tag " + name + " (#" + id + ")",
+			`Created tag ${name} (#${id})`,
 			"tag",
 			Number(id),
 		);
@@ -678,7 +678,7 @@ async function tagChange(
 		await activity(
 			context,
 			"tag_delete",
-			"Deleted tag #" + id,
+			`Deleted tag #${id}`,
 			"tag",
 			Number(id),
 		);
@@ -696,7 +696,7 @@ async function tagChange(
 	await activity(
 		context,
 		"tag_update",
-		"Updated tag #" + id + (values.name ? " to " + values.name : ""),
+		`Updated tag #${id}${values.name ? ` to ${values.name}` : ""}`,
 		"tag",
 		Number(id),
 	);
@@ -838,7 +838,7 @@ async function helpQuestionChange(
 		await activity(
 			context,
 			"help_delete",
-			"Deleted help-center entry #" + id,
+			`Deleted help-center entry #${id}`,
 			"help_center_category",
 			Number(id),
 		);
@@ -864,7 +864,7 @@ async function helpQuestionChange(
 		await activity(
 			context,
 			"help_create",
-			"Created help-center entry #" + id + " (" + createValues.name + ")",
+			`Created help-center entry #${id} (${createValues.name})`,
 			"help_center_category",
 			Number(id),
 		);
@@ -906,7 +906,7 @@ async function helpQuestionChange(
 		"help_update",
 		"Updated help-center entry #" +
 			id +
-			(values.name ? " (" + values.name + ")" : ""),
+			(values.name ? ` (${values.name})` : ""),
 		"help_center_category",
 		Number(id),
 	);
@@ -933,7 +933,7 @@ async function writeableBoxChange(
 		await activity(
 			context,
 			"writeable_box_delete",
-			"Deleted writeable box #" + id,
+			`Deleted writeable box #${id}`,
 			"writeable_box",
 			Number(id),
 		);
@@ -949,7 +949,7 @@ async function writeableBoxChange(
 		await activity(
 			context,
 			"writeable_box_toggle",
-			(isActive ? "Activated" : "Hid") + " writeable box #" + id,
+			`${isActive ? "Activated" : "Hid"} writeable box #${id}`,
 			"writeable_box",
 			Number(id),
 		);
@@ -979,7 +979,7 @@ async function writeableBoxChange(
 		await activity(
 			context,
 			"writeable_box_create",
-			"Created writeable box " + createValues.title + " (#" + id + ")",
+			`Created writeable box ${createValues.title} (#${id})`,
 			"writeable_box",
 			Number(id),
 		);
@@ -1007,9 +1007,7 @@ async function writeableBoxChange(
 	await activity(
 		context,
 		"writeable_box_update",
-		"Updated writeable box #" +
-			id +
-			(values.title ? " (" + values.title + ")" : ""),
+		"Updated writeable box #" + id + (values.title ? ` (${values.title})` : ""),
 		"writeable_box",
 		Number(id),
 	);
diff --git a/src/features/housekeeping/domains/content/services/mutation-runtime-external.ts b/src/features/housekeeping/domains/content/services/mutation-runtime-external.ts
index f2de73b29e..ad1d77d1f6 100644
--- a/src/features/housekeeping/domains/content/services/mutation-runtime-external.ts
+++ b/src/features/housekeeping/domains/content/services/mutation-runtime-external.ts
@@ -239,15 +239,14 @@ async function mediaUpload(input: unknown): Promise<ContentMutationSnapshot> {
 		MEDIA_TYPES,
 	);
 	await mkdir(MEDIA_ROOT, { recursive: true });
-	const name =
-		Date.now() + "-" + Math.random().toString(36).slice(2, 8) + "." + extension;
+	const name = `${Date.now()}-${Math.random().toString(36).slice(2, 8)}.${extension}`;
 	const filePath = resolveMediaPath(name);
 	if (!filePath.startsWith(MEDIA_ROOT + path.sep)) throw validation();
 	await writeFile(filePath, bytes);
 	return {
 		before: null,
 		after: { name, size: file.size, type },
-		output: { name, url: "/api/media/" + name },
+		output: { name, url: `/api/media/${name}` },
 	};
 }
 
@@ -291,7 +290,7 @@ async function photoDelete(
 		await logStaffActivity({
 			staffId: context.capability.actor.id,
 			action: "photo_delete",
-			description: "Deleted camera photo #" + id,
+			description: `Deleted camera photo #${id}`,
 			targetType: "camera_web",
 			targetId: id,
 		});
@@ -459,7 +458,7 @@ async function themeApplyPreset(
 		await logStaffActivity({
 			staffId: context.capability.actor.id,
 			action: "theme_preset",
-			description: "Applied theme preset " + name,
+			description: `Applied theme preset ${name}`,
 		});
 	} catch {
 		throw new ContentCommittedExternalFailure(snapshot);
@@ -504,7 +503,7 @@ async function themeCustomChange(
 	await logStaffActivity({
 		staffId: context.capability.actor.id,
 		action: "theme_preset",
-		description: "Saved custom theme " + theme.name,
+		description: `Saved custom theme ${theme.name}`,
 	});
 	return {
 		before: id ? { id } : null,
@@ -547,7 +546,7 @@ async function themeApplyCustom(
 		await logStaffActivity({
 			staffId: context.capability.actor.id,
 			action: "theme_preset",
-			description: "Applied custom theme " + theme.name,
+			description: `Applied custom theme ${theme.name}`,
 		});
 	} catch {
 		throw new ContentCommittedExternalFailure(snapshot);
@@ -580,13 +579,13 @@ async function faviconSave(input: unknown): Promise<ContentMutationSnapshot> {
 		FAVICON_TYPES,
 	);
 	const directory = resolveMediaPath("favicon");
-	const filename = "favicon-" + Date.now() + "." + extension;
+	const filename = `favicon-${Date.now()}.${extension}`;
 	const filePath = path.resolve(directory, filename);
 	if (!filePath.startsWith(directory + path.sep)) throw validation();
 	const oldUrl = await siteSettings.get("cms_favicon");
 	await mkdir(directory, { recursive: true });
 	await writeFile(filePath, bytes);
-	const url = "/api/media/favicon/" + filename;
+	const url = `/api/media/favicon/${filename}`;
 	const snapshot: ContentMutationSnapshot = {
 		before: { value: oldUrl ?? null },
 		after: { value: url },
@@ -654,7 +653,7 @@ async function logoSave(input: unknown): Promise<ContentMutationSnapshot> {
 	const oldUrl = await siteSettings.get("cms_logo");
 	await mkdir(directory, { recursive: true });
 	await writeFile(filePath, bytes);
-	const url = "/api/media/logo/" + filename;
+	const url = `/api/media/logo/${filename}`;
 	const snapshot: ContentMutationSnapshot = {
 		before: { value: oldUrl ?? null },
 		after: { value: url },
@@ -694,7 +693,7 @@ async function cmsTranslationSave(
 		process.cwd(),
 		"src",
 		"messages",
-		locale + ".json",
+		`${locale}.json`,
 	);
 	await writeFile(filePath, JSON.stringify(translations, null, 2), "utf-8");
 	return {
diff --git a/src/features/housekeeping/domains/content/services/mutations-production.ts b/src/features/housekeeping/domains/content/services/mutations-production.ts
index 72d26b6a21..175898aa1e 100644
--- a/src/features/housekeeping/domains/content/services/mutations-production.ts
+++ b/src/features/housekeeping/domains/content/services/mutations-production.ts
@@ -75,7 +75,7 @@ function auditEntry(
 ): AuditEntry {
 	return {
 		userId: context.capability.actor.id,
-		action: "content." + operation,
+		action: `content.${operation}`,
 		target: "Content",
 		correlationId: context.correlationId,
 		domain: "content",