Use tsbuild to build project. Remove umd format support.

.eslintrc.json

@@ -1,7 +1,7 @@
 {
   "root": true,
   "parserOptions": {
-    "project": "./tsconfig.eslint.json"
+    "project": "./tsconfig.json"
   },
   "extends": [
     "@octetstream/eslint-config/esm/typescript/react"

.size-limit.json

@@ -4,15 +4,7 @@
     "limit": "1.5 KB"
   },
   {
-    "path": "lib/useSuspender.mjs",
-    "limit": "1.5 KB"
-  },
-  {
-    "path": "lib/useSuspender.legacy.mjs",
-    "limit": "2 KB"
-  },
-  {
-    "path": "lib/useSuspender.umd.js",
+    "path": "lib/useSuspender.js",
     "limit": "1.5 KB"
   }
 ]

package.json

@@ -10,24 +10,29 @@
     "react-hooks"
   ],
   "packageManager": "[email protected]",
-  "source": "./src/useSuspender.ts",
-  "main": "./lib/useSuspender.mjs",
-  "umd:main": "./lib/useSuspender.umd.js",
-  "module": "./lib/useSuspender.legacy.mjs",
+  "main": "./lib/useSuspender.js",
   "types": "./lib/useSuspender.d.ts",
   "exports": {
-    "import": "./lib/useSuspender.mjs",
-    "require": "./lib/useSuspender.cjs",
-    "types": "./lib/useSuspender.d.ts",
-    "default": "./lib/useSuspender.mjs"
+    "import": {
+      "types": "./lib/useSuspender.d.ts",
+      "default": "./lib/useSuspender.js"
+    },
+    "require": {
+      "types": "./lib/useSuspender.d.cts",
+      "default": "./lib/useSuspender.cjs"
+    },
+    "default": {
+      "types": "./lib/useSuspender.d.ts",
+      "default": "./lib/useSuspender.js"
+    }
   },
   "repository": "octet-stream/use-suspender",
   "author": "Nick K. <[email protected]>",
   "license": "MIT",
   "private": false,
   "scripts": {
     "cleanup": "del-cli lib",
-    "build": "microbundle --tsconfig tsconfig.build.json --jsx React.createElement --jsxFragment React.Fragment --jsxImportSource react --globals react/jsx-runtime=jsx",
+    "build": "del-cli lib && tsup",
     "size-limit": "size-limit",
     "staged": "lint-staged",
     "coverage": "c8 npm test",
@@ -70,6 +75,7 @@
     "sinon": "17.0.1",
     "size-limit": "8.2.4",
     "ts-node": "10.9.1",
+    "tsup": "^7.2.0",
     "typescript": "5.2.2"
   },
   "peerDependencies": {