Can I create a "chat" app between two Bangle.js 2 watches? Can I use Bangle.js 2 with Puck.js ?

Hi,
I wrote a small proof-of-concept app a while ago that uses the textinput and ble_uart modules to implement a minimalist chat app. It is quite hackish as it literally executes JS on a nearby Bangle to print a message (this also highlights one of the security issues with a Bangle with BLE enabled in general). The range is quite limited, 2m doesn't sound too far off...

function send_text(a) {
  NRF.requestDevice({filters:[{ namePrefix: 'Bangle.js' }], timeout:3000}).then(function(device) {
    return require("ble_uart").connect(device);
  }).then(
    function(uart) {
uart.write("if(typeof(_oldg)!='undefined­')g=_oldg;g.clear();E.showMessage('"+a+"­');g.flip();Bangle.buzz(300);_oldg=g;g=G­raphics.createArrayBuffer(8,8,1);\n").th­en(()=>{uart.disconnect(); load(); }, (error)=>{E.showAlert(error).then(()=>{l­oad()});});
    },
    function(error) {
      E.showAlert(error).then(()=>{load()});
    });
}
require("textinput").input().then((a)=>s­end_text(a));