someView.superview(is: view) // Which I consider more natural than 'view.addSubview(someView)'

view.subview(is: aView)
view.subviews(are: anotherView, yetAnotherView)

// UIKit:
view.addSubview(label)
label.translatesAutoresizingMaskIntoConstraints = false

view.addSubview(imageView)
imageView.translatesAutoresizingMaskIntoConstraints = false

imageView.heightAnchor.constraint(equalToConstant: 32).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 64).isActive = true

// XYKit:
view.subviews(are: label, imageView)

imageView.width(32)
imageView.height(64)

// Or even shorter:
imageView.size(width: 32, height: 64)

// What if constraints were inequalities like these:
imageView.widthAnchor.constraint(lessThanOrEqualToConstant: 32).isActive = true
imageView.heightAnchor.constraint(lessThanOrEqualToConstant: 64).isActive = true

// XYKit:
imageView.size(width: 32, height: 64, or: .less)

imageView.leading(snapTo: .margin)                          // Constraint leading anchor of the imageView to the leading margin of the superview
imageView.centerY()                                         // Center view in superview

label.leading(snapTo: gameImageView.trailing).offset(16)    // Constraint leading anchor of the label's trailing anchor, plus constant

tableView.sidesX(snapTo: .padding(20))          // Constraint horizontal sides to leading and trailing anchors of superview with the padding of 20
tableView.centerX()                             // Center tableView in superview

tableView.top(snapTo: .safeArea)                // Constraint top anchor of tableView to screen's safe area.
tableView.bottom(snapTo: self)                  // Constraint bottom anchor of tableView to superview's bottom anchor

mainStackView
            .superview(is: self)
            .subviews(are: titleStackView, timeStackView)
            .insets(left: 8, top: 8, right: 16, bottom: 16) // insets for UIStackView
            .spacing(20)                                    // spacing between arranged subviews inside UIStackView
            .sides(snapTo: .safeArea)                       // Snap all sides to the screen's safe areas
        
let tap = UITapGestureRecognizer(target: self, action: #selector(imageViewTapped))
imageView.tappable(with: tap)                               // Another extension for UIView