diff --git a/package-lock.json b/package-lock.json
index 6485dde..f34a88e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,10 @@
 		"": {
 			"name": "plantwiki-svelte",
 			"version": "0.0.1",
+			"dependencies": {
+				"fp-ts": "^2.16.1",
+				"io-ts": "^2.2.20"
+			},
 			"devDependencies": {
 				"@sveltejs/adapter-auto": "^2.0.0",
 				"@sveltejs/adapter-node": "^1.3.1",
@@ -1287,6 +1291,11 @@
 				"node": ">=8"
 			}
 		},
+		"node_modules/fp-ts": {
+			"version": "2.16.1",
+			"resolved": "https://registry.npmjs.org/fp-ts/-/fp-ts-2.16.1.tgz",
+			"integrity": "sha512-by7U5W8dkIzcvDofUcO42yl9JbnHTEDBrzu3pt5fKT+Z4Oy85I21K80EYJYdjQGC2qum4Vo55Ag57iiIK4FYuA=="
+		},
 		"node_modules/fs-constants": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
@@ -1476,6 +1485,14 @@
 			"integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
 			"dev": true
 		},
+		"node_modules/io-ts": {
+			"version": "2.2.20",
+			"resolved": "https://registry.npmjs.org/io-ts/-/io-ts-2.2.20.tgz",
+			"integrity": "sha512-Rq2BsYmtwS5vVttie4rqrOCIfHCS9TgpRLFpKQCM1wZBBRY9nWVGmEvm2FnDbSE2un1UE39DvFpTR5UL47YDcA==",
+			"peerDependencies": {
+				"fp-ts": "^2.5.0"
+			}
+		},
 		"node_modules/is-arrayish": {
 			"version": "0.3.2",
 			"resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz",
diff --git a/package.json b/package.json
index 49d4cfa..61c198d 100644
--- a/package.json
+++ b/package.json
@@ -23,5 +23,9 @@
 		"vite": "^4.4.2",
 		"vite-plugin-toml": "^0.6.0"
 	},
-	"type": "module"
+	"type": "module",
+	"dependencies": {
+		"fp-ts": "^2.16.1",
+		"io-ts": "^2.2.20"
+	}
 }
diff --git a/src/lib/assets/plants/monstera-deliciosa.toml b/src/lib/assets/plants/monstera-deliciosa.toml
index 36a36e8..b2de837 100644
--- a/src/lib/assets/plants/monstera-deliciosa.toml
+++ b/src/lib/assets/plants/monstera-deliciosa.toml
@@ -4,7 +4,7 @@ bin_name = "Monstera Deliciosa"
 
 [image]
 remote = "https://upload.wikimedia.org/wikipedia/commons/d/d4/New_Monstera_Deliciosa_Leaf.jpg"
-format = "json"
+format = "jpeg"
 width = 1512
 source = "https://commons.wikimedia.org/wiki/File:New_Monstera_Deliciosa_Leaf.jpg"
 alt = """
diff --git a/src/lib/plants.ts b/src/lib/plants.ts
index 402148c..64bfef1 100644
--- a/src/lib/plants.ts
+++ b/src/lib/plants.ts
@@ -1,43 +1,54 @@
 import aloeVera from "$lib/assets/plants/aloe-vera.toml";
 import monsteraDeliciosa from "$lib/assets/plants/monstera-deliciosa.toml";
+import { isLeft } from "fp-ts/lib/Either";
+import * as t from "io-ts";
+import { PathReporter } from "io-ts/lib/PathReporter";
 
-export type PlantData = {
-	slug: string;
-	name: string;
-	bin_name: string;
+const PlantDataTS = t.type({
+	slug: t.string,
+	name: t.string,
+	bin_name: t.string,
 
-	image: {
-		local?: string;
-		remote?: string;
-		format?: string;
-		width?: number;
-		source: string;
-		alt: string;
-	};
-	temp: {
-		death: number;
-		lower: number;
-		upper: number;
-	};
-	care: {
-		description: string;
-		water_schedule: string;
-		mist_schedule?: string;
-		fertilize_schedule?: string;
-		clean_schedule?: string;
-	};
-	site: {
-		description: string;
-		light: string;
-		humidity?: string;
-	};
-};
+	image: t.type({
+		local: t.union([t.string, t.undefined]),
+		remote: t.union([t.string, t.undefined]),
+		format: t.union([t.string, t.undefined]),
+		width: t.union([t.number, t.undefined]),
+		source: t.string,
+		alt: t.string,
+	}),
+	temp: t.type({
+		death: t.number,
+		lower: t.number,
+		upper: t.number,
+	}),
+	care: t.type({
+		description: t.string,
+		water_schedule: t.string,
+		mist_schedule: t.union([t.string, t.undefined]),
+		fertilize_schedule: t.union([t.string, t.undefined]),
+		clean_schedule: t.union([t.string, t.undefined]),
+	}),
+	site: t.type({
+		description: t.string,
+		light: t.string,
+		humidity: t.union([t.string, t.undefined]),
+	}),
+});
+
+export type PlantData = t.TypeOf<typeof PlantDataTS>;
 
 type PlantMap = { [key: PlantData["slug"]]: PlantData };
 
 export const plants: PlantMap = [aloeVera, monsteraDeliciosa].reduce(
 	(acc, cur) => {
-		acc[cur.slug] = cur;
+		const decoded = PlantDataTS.decode(cur);
+		if (isLeft(decoded)) {
+			throw Error(
+				`Invalid plant data ${PathReporter.report(decoded).join("\n")}`,
+			);
+		}
+		acc[cur.slug] = decoded.right;
 		return acc;
 	},
 	{} as PlantMap,
diff --git a/src/routes/+server.ts b/src/routes/+server.ts
new file mode 100644
index 0000000..189f71e
--- /dev/null
+++ b/src/routes/+server.ts
@@ -0,0 +1 @@
+export const prerender = true;
diff --git a/src/routes/plants/[plant]/+page.ts b/src/routes/plants/[plant]/+page.ts
index edd8de1..8fa3943 100644
--- a/src/routes/plants/[plant]/+page.ts
+++ b/src/routes/plants/[plant]/+page.ts
@@ -2,6 +2,8 @@ import { error } from "@sveltejs/kit";
 import type { PageLoad } from "./$types";
 import { plants, type PlantData } from "$lib/plants";
 
+export const prerender = "auto";
+
 export const load: PageLoad = ({ params }) => {
 	if (plants[params.plant]) {
 		return plants[params.plant] as PlantData;