Top
Best
New

Posted by larelli 4 hours ago

Composition Shouldn't be this Hard(www.cambra.dev)
54 points | 33 commentspage 2
auxiliarymoose 3 hours ago|
I've also felt that composition is unnecessarily hard in web & data infrastructure. I do game development as a hobby, and web + data technology is in the stone age compared to game engines when it comes to composability.

For example, say I develop some object (scene) in Godot Engine. It interacts with the environment using physics simulation, renders 3D graphics to the screen with some shaders and textures, and plays back audio from its 3D location.

I can send this scene to some other user of Godot, and it will naturally just work in their project, including colliding with their objects, rendering in their viewport (including lighting and effects), and the player will hear the location of the object spatially.

Of course there is much more you can do in Godot, too: network requests, event-driven updates, localization, cross-platform inputs, the list goes on. And all of these compose and scale in a manageable way as projects grow.

Plus the engine provides a common data and behavior backbone that makes it possible for a single project to have code in C++, C#, GDScript, and even other languages simultaneously (all of these languages talk with the engine, and the engine exposes state and behaviors to each language's APIs).

In fact, I've been thinking about making a Godot-inspired (or perhaps even powered) business application framework because it's just such a productive way of building complex logic and behavior in a way that is still easy to change and maintain.

So I imagine if Cambra can bring a similar level of composability for web & data software, it could dramatically improve the development speed and quality of complex applications.

aquariusDue 15 minutes ago||
I've heard of people using Godot for non-game applications and I'm tempted to try something similar in the (near?) future because supposedly Low Processor Usage Mode makes it kinda feasible/sensible if you develop with that in mind from the start.

And while web pages can masquerade as desktop and mobile apps why wouldn't games be allowed to do the same? Godot for example can do desktop multi-window while something like Flutter (which is amazing in its own right) can't do.

But yeah, someone needs to spend time and build out UI toolkits for Godot and sadly that's not really a long weekend undertaking.

Still! It's nice to dream from time to time and imagine a reality where we can either do some generic cookie cutter UI because it's meant to get things done without much ceremony or we can pull out all the stops and plop a 3D scene to walk around the file system and shot files to delete them. And yeah, I'm aware someone did a thing like that in VS Code with Three.js (I think?)[0] and for Flutter you can do something similar in a webview inside the app proper.

Yet somehow I would rather do those things inside Godot for reasons unknown to me.

[0] Found it: https://marketplace.visualstudio.com/items?itemName=brian-nj...

eitland 2 hours ago||
Back in the days we had this in programming as well with palettes of drag & drop components.

It is kind of broken now, much thanks to using web applications (and applications that are basically just wrappers for web applications), but I don't know I if want to go back.

On one side it was much easier when I could hack together a program that was good enough (since everything was the same bland grey).

On the other hand some programs certainly looks nicer today.

And it has become easier to compose logic with solutions like Maven, Nuget and the various frontend package managers.

But yes, we lost drag and drop UI development, we lost consistency and we lost a lot of UX (at least temporarily).

auxiliarymoose 2 hours ago||
I think there's a lot of potential for some more old-school UI in business software. People using points of sale, CRM/ERP/PLM/etc. systems, intranet portals, and so on don't really care about how nice it looks. Efficiency is more important.

Especially if it can be easy for non-technical people to build efficient UIs and databases (so they don't have to resort to spreadsheet contraptions), I think there's an opportunity here...

OtherShrezzing 3 hours ago||
That's an interesting post, most of which I agree with. I think the problems it describes were mostly solved (and then rejected by the industry) in the 2010s with stuff like .Net MVC & WebForms (Java had similar frameworks). You'd still have a relational database at the bottom, but everything else was written in dotnet/C# under the MVC or WebForm model. Monoliths were the norm, and deployments were "just spin up a second server, and change the IP address when it's ready to go".

It was a very productive way to produce most software. But as soon as you want to do something off-piste, you pay the entire productivity penalty.

reubenmorais 3 hours ago||
The proposition reminds me of Rama by Red Planet Labs: https://redplanetlabs.com/
9dev 3 hours ago||
This sounds a lot like the original vision of darklang: https://darklang.com
duesabati 2 hours ago|
Yeah exactly, came to the comments just for this check
blixt 3 hours ago||
I started getting into webdev using PHP almost 30 years ago. So I'm probably biased. But when you're developing on just one machine in one language and you can do most of the stuff you need to do within that one system, you can make progress very fast, and the system can support you coding fast (I'm not proud of it but I was live patching production code via SSH and refreshing a web page as fast as humanly possible to make sure it didn't break).

I believe there are several ways achieve that analogy today, even though the technology we have access to (and our own demands) has exponentially grown in complexity. I am happy to see more people thinking about it.

[Side track: I am personally not a fan of "break it up into many tiny systems" (microservices, etc) since it removes that agility of logic/state moving around the system. I just see an attempt to codify the analog of a very large human organization.]

Now that AI lets a single person (and in some cases, no person at all!) write several orders of magnitude more code than they would possibly have been able to, the requirements of our systems will change too, and our old ways of working is cracking at the seams. In a way we're perhaps building up a whole new foundation, sending our AIs to run 50-year-old terminal commands. Maybe that's all we needed all along, but I do find it strange that AI is forced to work within a highly fragmented system, where 95%, if not 99%, of all startups that write code with AI while hiding it from the user, are essentially following the recipe of: (1) launch VM (2) tell AI to install Next.js and good luck.

I too have a horse in this race and have come to similar conclusions as the article: there is a way to create primitives on top of bare metal that work really well for small and large applications alike, and let you express what you really wanted across compute/memory/network. And I believe that with AI we can go back to first principles and rethink how we do things, because this time the technology is not just for groups of humans. I find this really exciting!

athrowaway3z 2 hours ago||
> I think I’ve found a model that can break out of this tradeoff. Implementing it is more than I can do alone

I think anything that can change this has to be simple enough that it'd be more effective to just explain the system and implement it, than wax about the general outline of part of the problem. Especially since the real target audience for an initial release by necessity needs to understand it.

There are some big leaps we could make with having code be more flat. Things like having the frontend and backend handler in the same file under the same compiler/type checker. But somebody will want to interact with a system outside of the 'known-world' and then you're writing bindings and https://xkcd.com/927/

At the end of the day I think the core tension is that once the speed of light is noticeable to your usecase things become distributed, which creates the desire for separate rate-of-change. I'm not sure what would 'solve' that.

AI will be a plus, for the fact that a single team can be in charge of more of the parts leading to a more coherent whole.

Hope OP builds some nice tools, but I've seen too many of these attempts fail to get excited about "i think we found it".

BoppreH 3 hours ago||
I agree that this is our profession's Achilles heel. But I see one more cause: binaries and processes are black boxes unless they deliberately implement an interconnect feature. Try to extract the list of playlists from a Spotify client, for example.

We lucked into filesystems that have open structures (even if the data is opaque). Perhaps we should be pushing for "in-memory filesystems" as a default way of storing runtime data, for example.

simianwords 3 hours ago||
This reminds me of Rama [1] from Red Planet Labs

[1] https://redplanetlabs.com/programming-model

> What is Rama? Rama is a platform for building distributed backends as single programs. Instead of stitching together databases, queues, caches, and stream processors, you write one application that handles event ingestion, processing, and storage.

DarkNova6 3 hours ago||
Sounds like the typical "Distributed Monolith" antipattern. And we will see more of that because "software is cheap" and everybody will built microservices and find themselves in hell because nobody stopped to think if their domain context is well contained.
LeCompteSftware 3 hours ago|
There's a contradiction here that needs to be untangled:

  There are many examples of models that enable coherent systems within specific domains:

  - Type systems in programming languages catch many logic errors and interface misuses

  - The relational model in databases enables programmers to access incredible scale and performance with minimal effort.

  [...]

  So coherent systems are great: everyone should just buy into whatever model will most effectively do the job. Right? Unfortunately, the listed models are all domain-specific–they don’t generalize to other contexts. And most modern internet software is not domain-specific. Modern applications typically span a wide variety of domains, including web and API serving, transaction processing, background processing, analytical processing, and telemetry. That means that trying to keep a system coherent limits what that system can ultimately do. As one implements more capabilities, application requirements push us outside of a single domain, forcing us to reach for components with a different internal model. So, bit by bit, our system fragments.
The problem of course is that type systems and databases are not meaningfully "domain-specific." They aren't technical magic bullets but they separately provide real value for the use cases of "web and API serving, transaction processing, background processing, analytical processing, and telemetry." So then why hasn't the industry settled on a specific type system? Why do database vendors (and the SQL standard) keep breaking the relational model in favor of something ad hoc and irritating?

I believe the real problem is that software is symbolic and the problems it solves usually aren't. Writing an application means committing to a certain set of symbolic axioms and derivation schemas, and these are never going to encapsulate the complexity of the real world. This relates to Greenspun's 10th rule:

  Any sufficiently complicated C or Fortran program contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of Common Lisp.
Or in a modern context, C++/C# and managing a huge amount of configuration data with a janky JSON/XML parser, often gussied up as an "entity component system" in game development, or a "DSL" in enterprise. The entirely equivalent alternative is a huge amount of (deterministic!) compile-time code generation. Any specific symbolic system small enough to be useful to humans is eventually going to go "out of sync" with the real world. The authors hint at this with the discrepancy between SQL's type system and that of most programming languages, but this is a historical artifact. The real problem is that language designers make different tradeoffs when designing their type system, and I believe this tradeoff is essentially fundamental. Lisp is a dynamically-typed s-expression parser and Lisp programs benefit from being able to quickly and easily deal with an arbitrary tree of whatever objects. In C#/C++ you would either have to do some painful generics boilerplate (likely codegen with C#) or box everything as System.Object / void pointer and actually lose some of the type safety that Lisp provides. OTOH Idris and Lean can do heterogeneous lists and trees a little more easily, but that cost is badly paid for in compilation times, and AFAICT it'll still demand irritating "mother may I?" boilerplate to please the typechecker. There is a fundamental tradeoff that seems innate to the idea of communicating with relatively short strings of relatively few symbols.

This sounds like Godel incompleteness, and it's a related idea. But this has more to do with cognition and linguistics. I wish I was able to write a little more coherently about this... I guess I should collect some references and put together a blog at some point.

Toutouxc 1 hour ago|
> The problem of course is that type systems and databases are not meaningfully "domain-specific." They aren't technical magic bullets but they separately provide real value for the use cases of "web and API serving, transaction processing, background processing, analytical processing, and telemetry." So then why hasn't the industry settled on a specific type system? Why do database vendors (and the SQL standard) keep breaking the relational model in favor of something ad hoc and irritating?

I'm not sure what point you're trying to make here. The list you're referring to is definitely a bit hand-wavy, but it also makes sense to me to read it as, for example, "today's relational databases (software) are almost perfectly aligned to the domain of relational databases (concept)". As in, MariaDB running on my Mac wraps an insane amount of complexity and smarts in a very coherent system that only exposes a handful of general concepts.

The concepts don't match what I'd like to work with in my Rails app, which makes the combination of both a "fragmented system", as the article calls it, but the database itself, the columns, tables, rows and SQL above it all, that's coherent and very powerful.

LeCompteSftware 1 hour ago||
It depends on what you mean by "almost perfectly aligned to the domain of relational databases" but by my standards I can't think of a single production database where that's true, in large part because it's not true for SQL itself.

- Tables are not relations. Tables are multisets, allowing duplicate rows, whereas relations always have a de facto primary key. SQL is fundamentally a table language, not a relational language.

- NULL values are not allowed in relations, but they are in SQL. In particular, there's nothing relational about an outer join.

In both cases they are basically unscientific kludges imposed by the demands of real databases in real problems. "NULL" points to the absence of a coherent answer to a symbolic rule, requiring ad hoc domain-specific handling. So this isn't a pedantic point: most people wouldn't want to use a database that didn't allow duplicate rows (the SQL standard committee mentioned a cash register receipt with multiple entries that don't need to be distinguished, just counted). Nullable operations are obviously practical even if they're obviously messy. Sometimes you just want the vague structure of a table, a theory that's entire structural and has no semantics whatsoever. But doing so severely complicates the nice symbolic theory of relational algebra.

That's the point I'm getting at: there isn't really a "domain" limitation for relational algebra, it's more that there's a fundamental tradeoff between "formal symbolic completeness" and "practical ability to deal with real problems." Eventually when you're dealing with real problems, practicality demands kludges.

More comments...