This is a nicely laid out collection of tutorials, but I'm sad that collections like this have drifted away from the very deliberate structure that A Pattern Language introduced. While patterns weren't invented by Alexander and co, they did inspire a lot of what we see in tech these days, inherited via design patterns etc.

In A Pattern Language, each pattern is hyperlinked to other patterns in a kind of hierarchy, where larger patterns (like "house cluster") are broken down into smaller constituent parts ("main entrance") all the way to quite granular details ("low doorway").

This is because you can't just take a pattern on its own; it forms part of a larger whole.

Tech pattern books often focus on small recurring structures (e.g. "command pattern" from this site), but not how they help create some larger pattern, or in the other direction, what are the smaller patterns that help create them.

This sounds like a lot of hard work of course, which is why people don't do it.* I would love to see this accomplished though. If only I had an extra 36 hours in each day.

One thing that A Pattern Language is also great at is motivating each pattern with a specific problem or symptom. This site seems to do a decent job at that, though some problems seem... kind of weakly motivated. For example, the above mentioned "command pattern" is motivated by "what if we need to rename a method?" which... is pretty weak tbh.

*EDIT: also because fitting patterns into a whole, maybe unavoidably, will promote a perspective, or a way of building a whole system. A pattern book for web applications written from an HTMX point of view would be a very different book to one written from a React slant. Maybe one pattern language can accommodate both sets of technologies, or maybe not.

If you're trying to connect Alexander to software patterns like GOF, it's important to include Gabriel's "Patterns of Software" [1] as the first genuine attempt to apply Alexandrian patterns to software. It also introduces the first and probably the best takedown of OO inheritance as not reuse but instead a form of _compression_ that is in many ways worse than just copy-and-paste.

1 - https://www.dreamsongs.com/Files/PatternsOfSoftware.pdf

Here's an excerpt from APL showing what I mean about the connections to the other patterns. This isn't the whole pattern, there's a lot between the problem statement and summary. Annotations in brackets are mine.

---

Short Passages (132)

[Context, or pre-links]

The Flow Through Rooms (131) describes the generosity of light and movement in the way that rooms connect to one another and recommends against the use of passages. But when there has to be a passage in an office or a house and when it is too small to be a Building Thoroughfare (101), it must be treated very specially, as if it were itself a room. This pattern gives the character of these smallest passages, and so completes the circulation system laid down by Circulation Realms (98) and Building Thoroughfare (101) and The Flow Through Rooms (131).

[Problem statement]

Long, sterile corridors set the scene for everything bad about modern architecture. In fact, the ugly long repetitive corridors of the machine age have so far infected the word "corridor" that it is hard to imagine that a corridor could ever be a place of beauty, a moment in your passage from room to room, which means as much as all the moments you spend in the rooms themselves.

[Pattern contents here]

[Pattern summary]

Keep passages short. Make them as much like rooms as possible, with carpets or wood on the floor, furniture, bookshelves, beautiful windows. Make them generous in shape, and always give them plenty of light; the best corridors and passages of all are those which have windows along an entire wall.

[Elaboration, or post-links]

Put in windows, bookshelves, and furnishings to make them as much like actual rooms as possible, with alcoves, seats along the edge - Light on Two Sides of Every Room (159), Alcoves (179), Window Place (180), Thick Walls (197), Closets Between Rooms (198); open up the long side into the garden or out onto balconies - Outdoor Room (163), Gallery Surround (166), Low Sill (222). Make interior windows between the passage and the rooms which open off it - Interior Windows(194), Solid Doors With Glass(237). And finally, for the shape of the passages, in detail, start with The Shape of Indoor Space (191)