Drupal 8.x

So I guess this is more of a philosophical or 'best practice' question, but I've found three ways to modify breadcrumbs in D8. For this, say I want to build a breadcrumb as follows, and the theme extends from classy.

Top parent menu item > ... > Parent menu item > Page title

There seem to be three ways to approach this:

Hi,

I am new to Drupal and if I will begin to know a little more want to start with the new dropal 8.
I have started watch the drupal 8 before the release and as many people I am very excited.
One of the things I have noticed is the lack of drupal 8 premium themes. I have always looked and few have found. However noticed that the drupal theme authors continue to launch premium drupal themes from the previous version today.

I am using Drupal 8.0.2. I tried to install Drupal on non public schema on PostgreSql but it fails.
First it wanted me to alter table with this command :
ALTER DATABASE "mydb" SET bytea_output = 'escape'

After that I tried to continue but gives me this:

I'm beginner of drupal8.When I call the path "localhost/admin/content/node" which created by 'content' views, will show "The requested page could not be found". in the preview of this view in the views page,the path is 'admin/content' and it's available. Why did this change it？ someone can help me?

I've come from the Joomla community and I'm just starting to learn Drupal 8, and I think I like it. :)

I've only watched a beginner video tutorial and I have a question.

Is it possible to work with a custom.css file like in Joomla, for minor css styling?

Sincerely
Felix Rimfrost
(just a simple site builder)

Hi guys. I have a single-user (me) Drupal 7 site - which, apart from all of the usual post/pages has a single page using PHP code. I'm migrating to Drupal 8 and figured that it might be time to stop using the PHP filter and try something else... but I'm coming up empty in terms of finding alternative ways of doing things other than writing your own module, which I have tried but even getting a Hello World module is a hell of a learning curve for someone who only knows a little HTML and PHP, and I have had no success there.

What else is there?