Setup web client with Debian 10

prerequeste:

sudo apt install nodejs
nodejs -v
v10.15.2

sudo apt install npm
npm -v
5.8.0

Installing git

sudo apt install git

Step01

mkdir ~/trytond
cd trytond
git clone --single-branch --branch 5.0 https://github.com/tryton/sao.git
cd sao
npm install -g bower

than i get:

sudo npm install -g bower
npm WARN npm npm does not support Node.js v10.15.2

I will try with solution:

http s://github.com/nodejs/help/issues/1877

sudo apt install curl
curl https://www.npmjs.com/install.sh | sudo sh

than it works

sudo npm install -g bower
npm WARN deprecated bower@1.8.8: We don't recommend using Bower for new projects. Please consider Yarn and Webpack or Parcel. You can read how to migrate legacy project here: https://bower.io/blog/2017/how-to-migrate-away-from-bower/
/usr/local/bin/bower -> /usr/local/lib/node_modules/bower/bin/bower
+ bower@1.8.8
updated 1 package in 2.806s

next problem

sudo npm install -g po2json
npm WARN deprecated nomnom@1.8.1: Package no longer supported. Contact support@npmjs.com for more info.
/usr/local/bin/po2json -> /usr/local/lib/node_modules/po2json/bin/po2json
+ po2json@0.4.5
added 11 packages from 15 contributors in 1.938s

Now i have:

node -v
v12.15.0
 npm -v
6.13.4

My http s://tecadmin.net/install-latest-nodejs-npm-on-debian/ is starting.

access http://127.0.0.1:3000/ url in browser.

I get Hello World in my browser-

It doesn’t solved my Tryton problem.

Can you please help me?