Using Visual Studio Code and Power Pages to Code Advancement

It's the fifth product in the microso power platform family. Use visual studio code and power pages to code advance abilitis. So you can do java script, liquid templat code components,. describe o me, i still don't understand how this is different fromp from portals. It has needof support for aser front door, which is kind of interestingto kind of front it as a security solution.