Upgrade to yarn 3

.gitignore

@@ -1,8 +1,34 @@
-.idea/*
-.nyc_output
-build
-node_modules
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+# Typescript build
+tsconfig.tsbuildinfo
+
+# production
+/build
 src/**.js
-coverage
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
 *.log
-package-lock.json
+
+# local env files
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

package.json

@@ -24,7 +24,6 @@
   "engines": {
     "node": ">=10"
   },
-  "dependencies": {},
   "devDependencies": {
     "@types/node": "^16.11.10",
     "ethers": "^5.6.8",