diff --git a/copperc/src/app/u/pipeline/_nodes/constant.tsx b/copperc/src/app/u/pipeline/_nodes/constant.tsx
index 0f806133..f094e13c 100644
--- a/copperc/src/app/u/pipeline/_nodes/constant.tsx
+++ b/copperc/src/app/u/pipeline/_nodes/constant.tsx
@@ -2,8 +2,8 @@ import { NumberInput, Select, TextInput } from "@mantine/core";
 import { Node, NodeProps, useReactFlow } from "@xyflow/react";
 import { BaseNode } from "./base";
 import { NodeDef } from ".";
+import { stringUnionToArray } from "@/lib/util";
 
-const types = ["Text", "Integer", "Float"] as const;
 type ValueType =
 	| {
 			type: "Text";
@@ -12,8 +12,25 @@ type ValueType =
 	| {
 			type: "Integer";
 			value: number;
+	  }
+	| {
+			type: "Float";
+			value: number;
+	  }
+	| {
+			type: "Boolean";
+			value: boolean;
 	  };
 
+type ConstType = ValueType["type"];
+
+export const constTypes = stringUnionToArray<ConstType>()(
+	"Text",
+	"Integer",
+	"Float",
+	"Boolean",
+);
+
 type ConstantNodeType = Node<
 	{
 		value: ValueType;
@@ -45,9 +62,9 @@ function ConstantNodeElement({ data, id }: NodeProps<ConstantNodeType>) {
 		input = (
 			<NumberInput
 				label="Value"
-				placeholder="enter constant number"
+				placeholder="enter constant integer"
 				onChange={(value) => {
-					if (typeof value === "string") {
+					if (typeof value !== "number") {
 						return;
 					}
 
@@ -62,6 +79,44 @@ function ConstantNodeElement({ data, id }: NodeProps<ConstantNodeType>) {
 				allowDecimal={false}
 			/>
 		);
+	} else if (data.value.type === "Float") {
+		input = (
+			<NumberInput
+				label="Value"
+				placeholder="enter constant float"
+				onChange={(value) => {
+					if (typeof value !== "number") {
+						return;
+					}
+
+					updateNodeData(id, {
+						value: {
+							type: "Float",
+							value,
+						},
+					});
+				}}
+				value={data.value.value}
+				allowDecimal={true}
+			/>
+		);
+	} else if (data.value.type === "Boolean") {
+		input = (
+			<Select
+				label="Value"
+				placeholder="enter constant boolean"
+				data={["true", "false"]}
+				value={data.value.value ? "true" : "false"}
+				onChange={(value) => {
+					updateNodeData(id, {
+						value: {
+							type: "Boolean",
+							value: value === "true",
+						},
+					});
+				}}
+			/>
+		);
 	}
 
 	return (
@@ -76,8 +131,10 @@ function ConstantNodeElement({ data, id }: NodeProps<ConstantNodeType>) {
 				<Select
 					label="Data type"
 					placeholder="Pick value"
-					data={types}
-					onChange={(value) => {
+					data={constTypes}
+					onChange={(v) => {
+						const value = v as ConstType | null;
+
 						if (value === null || value == data.value.type) {
 							return;
 						}
@@ -102,6 +159,20 @@ function ConstantNodeElement({ data, id }: NodeProps<ConstantNodeType>) {
 									value: 0,
 								},
 							});
+						} else if (value === "Float") {
+							updateNodeData(id, {
+								value: {
+									type: "Float",
+									value: 0,
+								},
+							});
+						} else if (value === "Boolean") {
+							updateNodeData(id, {
+								value: {
+									type: "Boolean",
+									value: false,
+								},
+							});
 						}
 					}}
 					value={data.value.type}
diff --git a/copperc/src/app/u/pipeline/_nodes/input.tsx b/copperc/src/app/u/pipeline/_nodes/input.tsx
index b0d836b2..3db2208d 100644
--- a/copperc/src/app/u/pipeline/_nodes/input.tsx
+++ b/copperc/src/app/u/pipeline/_nodes/input.tsx
@@ -1,18 +1,11 @@
 import { Select } from "@mantine/core";
 import { Node, NodeProps, useReactFlow } from "@xyflow/react";
 import { BaseNode } from "./base";
-import { dataTypes } from "@/lib/attributes";
+import { DataType, dataTypes } from "@/lib/attributes";
 import { NodeDef } from ".";
 import { components } from "@/lib/api/openapi";
 
-const types = ["Text", "Integer", "Float"] as const;
-
-type InputNodeType = Node<
-	{
-		type: (typeof types)[number];
-	},
-	"pipelineinput"
->;
+type InputNodeType = Node<{ type: DataType }, "pipelineinput">;
 
 function InputNodeElement({ data, id }: NodeProps<InputNodeType>) {
 	const { deleteElements, getEdges, updateNodeData } = useReactFlow();
@@ -92,8 +85,6 @@ export const InputNode: NodeDef<InputNodeType> = {
 			return null;
 		}
 
-		return {
-			type: data_type.value as (typeof types)[number],
-		};
+		return { type: data_type.value as DataType };
 	},
 };
diff --git a/copperc/src/lib/attributes/index.ts b/copperc/src/lib/attributes/index.ts
index 4bec11ca..021e7322 100644
--- a/copperc/src/lib/attributes/index.ts
+++ b/copperc/src/lib/attributes/index.ts
@@ -8,18 +8,11 @@ import { _integerAttrType } from "./impls/integer";
 import { _hashAttrType } from "./impls/hash";
 import { _referenceAttrType } from "./impls/reference";
 import { components } from "../api/openapi";
+import { stringUnionToArray } from "../util";
 
 export type DataType =
 	components["schemas"]["AttributeInfo"]["data_type"]["type"];
 
-// Hack types to enforce `attrTypes`
-type NonEmptyArray<T> = [T, ...T[]];
-type MustInclude<T, U extends T[]> = [T] extends [U[keyof U]] ? U : never;
-function stringUnionToArray<T>() {
-	return <U extends NonEmptyArray<T>>(...elements: MustInclude<T, U>) =>
-		elements;
-}
-
 export const dataTypes = stringUnionToArray<DataType>()(
 	"Text",
 	"Integer",
diff --git a/copperc/src/lib/util.ts b/copperc/src/lib/util.ts
new file mode 100644
index 00000000..6f85de8c
--- /dev/null
+++ b/copperc/src/lib/util.ts
@@ -0,0 +1,13 @@
+// Hack types to enforce `attrTypes`
+type NonEmptyArray<T> = [T, ...T[]];
+type MustInclude<T, U extends T[]> = [T] extends [U[keyof U]] ? U : never;
+
+/**
+ * Hack that allows us to create a type-checked array
+ * that contains every variant of a string union.
+ */
+// TODO: uniqueness
+export function stringUnionToArray<T>() {
+	return <U extends NonEmptyArray<T>>(...elements: MustInclude<T, U>) =>
+		elements;
+}