Quite some work done here.

templates/tech/registration/confirmation_email.html.twig

@@ -0,0 +1,11 @@
+<h1>Hi! Please confirm your email!</h1>
+
+<p>
+    Please confirm your email address by clicking the following link: <br><br>
+    <a href="{{ signedUrl }}">Confirm my Email</a>.
+    This link will expire in {{ expiresAtMessageKey|trans(expiresAtMessageData, 'VerifyEmailBundle') }}.
+</p>
+
+<p>
+    Cheers!
+</p>

templates/tech/registration/register.html.twig

@@ -0,0 +1,16 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Register{% endblock %}
+
+{% block body %}
+    <h1>Register</h1>
+
+    {{ form_errors(registrationForm) }}
+
+    {{ form_start(registrationForm) }}
+        {{ form_row(registrationForm.email) }}
+        {{ form_row(registrationForm.plainPassword) }}
+
+        <button type="submit" class="btn">Register</button>
+    {{ form_end(registrationForm) }}
+{% endblock %}

templates/tech/security/login.html.twig

@@ -0,0 +1,42 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Log in!{% endblock %}
+
+{% block body %}
+<form method="post">
+    {% if error %}
+        <div class="alert alert-danger">{{ error.messageKey|trans(error.messageData, 'security') }}</div>
+    {% endif %}
+
+    {% if app.user %}
+        <div class="mb-3">
+            You are logged in as {{ app.user.userIdentifier }}, <a href="{{ path('app_logout') }}">Logout</a>
+        </div>
+    {% endif %}
+
+    <h1 class="h3 mb-3 font-weight-normal">Please sign in</h1>
+    <label for="inputEmail">Email</label>
+    <input type="email" value="{{ last_username }}" name="email" id="inputEmail" class="form-control" autocomplete="email" required autofocus>
+    <label for="inputPassword">Password</label>
+    <input type="password" name="password" id="inputPassword" class="form-control" autocomplete="current-password" required>
+
+    <input type="hidden" name="_csrf_token"
+           value="{{ csrf_token('authenticate') }}"
+    >
+
+    {#
+        Uncomment this section and add a remember_me option below your firewall to activate remember me functionality.
+        See https://symfony.com/doc/current/security/remember_me.html
+
+        <div class="checkbox mb-3">
+            <label>
+                <input type="checkbox" name="_remember_me"> Remember me
+            </label>
+        </div>
+    #}
+
+    <button class="btn btn-lg btn-primary" type="submit">
+        Sign in
+    </button>
+</form>
+{% endblock %}