gistfile1.txt

import { Component } from '@angular/core';
import SignClient from "@walletconnect/sign-client";
import { Web3Modal } from "@web3modal/standalone";

@Component({
  selector: 'walletconnect',
  templateUrl: './walletconnect.component.html',
  styleUrls: ['./walletconnect.component.css']
})

export class WalletConnectComponent {

  constructor() {
  }

  async onConnect() {
    const projectId = "xxxxxxxxxx"; // CHANGE: you need your own by registering at WalletConnect.com
    const web3Modal = new Web3Modal({
      projectId: projectId,
      standaloneChains: ["chia:mainnet"],
    });
    const signClient = await SignClient.init({
      projectId: projectId,
      metadata: {
        name: "splitxch.com", // CHANGE
        description: "", //CHANGE
        url: "splitxch.com", //CHANGE
        icons: ["https://splitxch.com/assets/favicon.png"], //CHANGE
      }
    });
    
    const { uri, approval } = await signClient.connect({
      requiredNamespaces: {
        chia: {
          methods: ["chia_getCurrentAddress"],
          chains: ["chia:mainnet"],
          events: []
        }
      },
    });
    
    if (uri) {
      web3Modal.openModal({
         uri: uri,
         standaloneChains: ["chia:mainnet"],
         route: 'ConnectWallet'
      });
      await approval();
      web3Modal.closeModal();
    }
  }

}

Other things you can ask for:
methods: ["chia_getWalletBalance", "chia_getWallets", "chia_getCurrentAddress", "chia_sendTransaction", "chia_signMessageById", "chia_signMessageByAddress", "chia_getCATAssetId", "chia_spendCAT"],