TBA

LLMs are changing things; how, what, and for whom is still vague. Many of the reactions to the change seem to be reflected in the five stages of grief: Denial, Anger, Bargaining, Depression, and Acceptance. This talk will take a humorous look at the changing landscape of software engineering, what is possible with AI, what is still difficult, potential ideas on how to cope with all of this, and how it might relate to the D programming language and its future.

Got something interesting to tell the D community, but not interested in presenting a full talk? We’ll give you five minutes to tell the world!

Lightning Talks are presentations restricted to five minutes or less. Speakers plug in their laptops and get started immediately. When their time is up, the emcee pulls them off stage and the next speaker gets going. The Lightning Talks session from DConf ‘23 serves as an excellent example of the format.

Any DConf attendee can sign up to present a Lightning Talk. We have three sessions scheduled this year with 6 slots available in each. We’ll fill them on a first-come, first-serve basis. Email social@dlang.org anytime before the conference to reserve your spot (after you’ve registered), or let Razvan Nitu know at any point during the conference prior to the start of the Lightning Talks session.

This talk will cover Vladimir’s experience using software development agents (such as Claude Code / Codex) in developing D software, including surprising successes and common pitfalls, as well as CyDo, a D program providing UI and orchestration for AI agents aiming for more structured software development. Due to the rapid development of the AI ecosystem, details may change by the time of the talk.

The Silq programming language is a high-level programming language for quantum computing. The type checker and compiler are implemented in D. In this talk, Timon will discuss his experience developing Silq in D, some design decisions in Silq, where it was inspired by D, and where it deliberately differs. Furthermore, he will live-code a version of Shor’s algorithm for factoring integers in a way that is accessible to quantum computing novices.

Introducing unit tests into a large production D codebase is very different from building for testability from the start. This talk shares Weka’s experience adding unit tests to an existing system that was not designed for them, while development was still ongoing. Noam will cover the main technical obstacles they faced, the incremental approach they used to introduce tests without large refactors, and the key lessons learned in practice.

A tremendous effort has been directed toward being able to directly compile C code with D’s ImportC compiler, a C compiler embedded in the D compiler. A lot of improvements were made in late 2025 and early 2026, which is a positiive direction for the language’s adoption in several legacy systems. In this talk, Emmanuel intends to keep the audience involved in the development journey by discussing the improvements made and providing an update on where we are.

Got something interesting to tell the D community, but not interested in presenting a full talk? We’ll give you five minutes to tell the world!

Lightning Talks are presentations restricted to five minutes or less. Speakers plug in their laptops and get started immediately. When their time is up, the emcee pulls them off stage and the next speaker gets going. The Lightning Talks session from DConf ‘23 serves as an excellent example of the format.

Any DConf attendee can sign up to present a Lightning Talk. We have three sessions scheduled this year with 6 slots available in each. We’ll fill them on a first-come, first-serve basis. Email social@dlang.org anytime before the conference to reserve your spot (after you’ve registered), or let Razvan Nitu know at any point during the conference prior to the start of the Lightning Talks session.

This talk introduces the new experimental Vulkan support in DCompute and LDC, allowing developers to generate SPIR-V bytecode directly from D source code for cross-platform GPU compute. It will explain the high-level pipeline of how D code connects to Vulkan and showcase what kind of compute kernels you can currently write and run natively in pure D.

The presentation also covers the practical workflow of navigating the massive LDC codebase as a beginner, including how to use AI tools to quickly find the right files. By the end of this talk, attendees will understand the current capabilities of the Vulkan backend and how they can start experimenting with cross-platform GPU programming in D.

Apple Silicon has made GPU computing more accessible than ever, but writing Metal kernels has always required leaving your primary language behind, switching to Metal Shading Language or Objective-C/Swift APIs. What if you could write and dispatch GPU kernels entirely in D?

LDC, the LLVM-based D compiler, and DCompute already support CUDA and OpenCL targets. Apple, however, maintains its own closed-source fork of LLVM to power their GPU toolchain, making Metal a uniquely challenging target. This talk documents Asabek’s journey as a contributor adding Metal GPU backend support to LDC and DCompute: the modifications required to emit correct Metal-compatible LLVM IR, the Metal Shading Language compiler intrinsics that had to be mapped, the metadata Apple’s toolchain expects, and how a working proof-of-concept eventually emerged from the effort.

By the end of this talk, attendees will know how to write GPGPU programs and run them on Apple GPUs, entirely in the D programming language, to accelerate computationally intensive workloads on their own Apple devices.

In this talk, Sergei presents his story of transformation from a data scientist/analyst who has never worked as a professional software developer to a D user who writes code primarily in the data science field and actively participates in the D community. His path provides a potential direction for D necomers to improve their D programming skills and become more involved in the D community.

This talk will cover Vladimir’s experience with a ground-up D rewrite of a legacy CRM-like system dealing with organizational and financial bookkeeping. Covered technologies include SQL / PostgreSQL, GraphQL, and D. Also covered will be Dunamis, a new project which aims to allow applications to efficiently expose database and API schemas via GraphQL.

A Game Jam is a hackathon where you build a game from scratch in just a few days. With such time pressure, it’s sensible to use a game engine so you can build fast. There’s just one problem: even before you even add a single game object, most engines produce bloated executables that take multiple seconds to download and load!

Well sure, maybe I should worry about making the game good instead of obsessing over a minor inconvenience. But I believe that complexity in general is the root of so many software problems, so I tried this ‘One Weird Trick!’ of just writing the D code I need and not drag in anything else, to see what we can learn. Luckily, many interesting things emerged from this experiment, which I want to share.

The greatest test of a new game programming language is whether it can actually be used to ship commercial software. This talk will prove that D can indeed be used to make games that are distributed on Mac, Windows, and Steam marketplaces. Eric will go in depth about the technical challenges associated with building universal binaries, code signing executables, and bundling often-used game programming libraries like SDL, Steamworks, and Discord SDKs. By the end of the talk, you’ll be able to go from dub dev builds to shipping plug-and-play .exe and .app files on Steam.

Got something interesting to tell the D community, but not interested in presenting a full talk? We’ll give you five minutes to tell the world!

Lightning Talks are presentations restricted to five minutes or less. Speakers plug in their laptops and get started immediately. When their time is up, the emcee pulls them off stage and the next speaker gets going. The Lightning Talks session from DConf ‘23 serves as an excellent example of the format.

Any DConf attendee can sign up to present a Lightning Talk. We have three sessions scheduled this year with 6 slots available in each. We’ll fill them on a first-come, first-serve basis. Email social@dlang.org anytime before the conference to reserve your spot (after you’ve registered), or let Razvan Nitu know at any point during the conference prior to the start of the Lightning Talks session.

The D programming language is well positioned to support game and graphics development because of it's ability to compile fast, generate fast code, and maintain plasticity for refactoring code at scale. In this talk, Mike will demonstrate several graphics tech demos that he has developed in his graphics engine using OpenGL 4.6. Throughout the talk Mike will highlight what features of the D programming language helped his development alongside his graphics engine. Mike will also show off his dub configuration, and VIM setup to show why he believes the barrier to entry to using D for game development is low and provides an excellent point to get started building real projects with D!

This talk covers why D is great for Students and how the D ecosystem is shaping up to be great for student projects. Nicholas will cover the progress made by some of the students in their projects for SAoC/GSoC/Bachelors theses for DMD, DCompute and other projects, and his experiences his delights in mentoring them, and tips for a good mentor/mentee relationship. He hopes to convince you that if you have an interesting project you should mentor students, and if you are a student, you should get in contact!

This is your chance to directly ask Walter and Átila your burning questions about the D language. Why did they make that decision you disagree with? What's the backstory behind a language feature? What are they working on behind the scenes? What do they think about your biggest pet peeve or most desired language feature? The floor will be open for an hour or more to everyone in the room, the livestream chat, and the community Discord. Don't be shy!