State of Kdenlive

98 f_r_d 2026-04-18 12:14:55 UTC kdenlive.org Llama Share 33

The Kdenlive team made significant progress in 2025, releasing new features, bug fixes, and improvements to the user interface, with a focus on stability and community support. The team is now looking ahead to upcoming features, including 10/12 bit color support, playback optimizations, and OpenFX support, and is grateful for community contributions and donations that enable continued development.

Why Japan has such good railways

48 RickJWagner 2026-04-18 13:14:55 UTC worksinprogress.co Llama Share 28

Japan's railway system excels due to good public policy, business structure, and land use rules, not cultural factors. Its unique model of private companies building cities and capturing value from real estate and commercial side businesses has contributed to its success.

Migrating from DigitalOcean to Hetzner: From $1,432 to $233 With Zero Downtime

57 yusufusta 2026-04-18 13:31:55 UTC isayeter.com Llama Share 21

A company migrated from DigitalOcean to Hetzner dedicated servers with zero downtime, saving $14,388 per year. The migration involved six phases, including MySQL replication, DNS TTL reduction, and reverse proxy setup.

Michael Rabin has died

214 tkhattra 2026-04-18 07:14:55 UTC en.wikipedia.org Llama Share 35

Michael Oser Rabin was an Israeli mathematician and computer scientist who co-received the 1976 ACM Turing Award for work on computational complexity. He made significant contributions to computer science, including the Miller-Rabin primality test and the Rabin-Karp string search algorithm.

Category Theory Illustrated – Orders

141 boris_m 2026-04-18 07:14:55 UTC abuseofnotation.github.io Llama Share 40

Orders are sets of elements with a binary relation that obeys laws of reflexivity, transitivity, antisymmetry, and totality, defining linear and partial orders. Removing laws from orders results in different structures, such as preorders and equivalence relations, which have various applications in mathematics and computer science.

Amiga Graphics Archive

151 sph 2026-04-18 07:14:55 UTC amiga.lychesis.net Full Share 34

Launched in 1985 the Commodore Amiga boasted graphics capabilities that were unsurpassed for it's time. It featured an intricate collection of custom chips that enabled it to do things that, until then, had been impossible to achieve with other personal computers. This site is dedicated to graphics made with or for the Commodore Amiga home computer.

It's OK to compare floating-points for equality

73 coinfused 2026-04-18 09:14:55 UTC lisyarus.github.io Llama Share 41

The user discusses the limitations and pitfalls of using epsilon-comparison for floating-point numbers, arguing that it's often a bad solution and can lead to unexpected behavior and bugs. They provide several examples of how to handle floating-point comparisons in a more robust and reliable way, such as using acceptance radii, analyzing the problem, and avoiding epsilons altogether.

Claude Design

1095 meetpateltech 2026-04-17 15:14:55 UTC anthropic.com Llama Share 721

Claude Design is a new product that lets users collaborate with Claude to create visual work like designs, prototypes, and presentations. It's available in research preview for Claude Pro, Max, Team, and Enterprise subscribers, with access included in their plans.

Show HN: I made a calculator that works over disjoint sets of intervals

215 fouronnes3 2026-04-18 04:14:55 UTC victorpoughon.github.io Llama Share 43

This calculator uses Interval Union Arithmetic to compute results that contain the true value, supporting division by intervals with zero and remaining closed. It interprets numbers as intervals with outward rounding over IEEE 754 double precision floats.

Measuring Claude 4.7's tokenizer costs

639 aray07 2026-04-17 16:14:55 UTC claudecodecamp.com Llama Share 453

Anthropic's new Claude Opus 4.7 tokenizer uses 1.3-1.45x more tokens than 4.6. This results in a 20-30% higher per-session cost for a small but real improvement in instruction following.

All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

379 cybermango 2026-04-17 19:14:55 UTC esa.int Llama Share 223

Lunar dust is toxic and causes health issues in humans due to its sharp, abrasive particles and electrostatic charge. Researchers are studying the dust to estimate the risk and develop protective measures for future lunar missions.

A Dumb Introduction to Z3 (2025)

13 y1n0 2026-04-18 11:14:55 UTC ar-ms.me Llama Share 10

The user is learning to use solvers, specifically Z3, to solve constraint problems in Rust, and is sharing their experience and understanding of the concepts and API. They have successfully used Z3 to solve various problems, including the Coin Change problem and a Sudoku, and are exploring its capabilities and limitations.

Towards trust in Emacs

147 eshelyaron 2026-04-18 02:14:55 UTC eshelyaron.com Llama Share 20

Emacs 30 introduced a trust system to prevent arbitrary code execution, but it causes friction by disabling features for untrusted files. trust-manager is a new package that grants trust just-in-time with minimal friction.

Flock Condemns False Child Predator Allegations, Yet Calls Critics Terrorists

55 jhonovich 2026-04-18 12:14:55 UTC ipvm.com Llama Share 14

Flock faces intense pressure from cities canceling contracts, class action lawsuits, and public backlash over employees accessing cameras. The company's CEO has attacked privacy advocates, labeling them terrorists, which may have contributed to the negative environment.

Spending 3 months coding by hand

247 evakhoury 2026-04-17 20:14:55 UTC miguelconner.substack.com Llama Share 257

The author is on a 6-week retreat at the Recurse Center to focus on coding without AI, learn Python, and understand computers better. They plan to train an LLM from scratch and improve their programming skills.

Brunost: The Nynorsk Programming Language

100 atomfinger 2026-04-18 04:14:55 UTC lindbakk.com Llama Share 45

The user created a fictional programming language called Brunost, which is based on the Norwegian language Nynorsk and has a unique syntax and features. Brunost is intended as a fun and educational project, not a production-ready language, and the user invites others to contribute to its development on GitHub.

Are the costs of AI agents also rising exponentially? (2025)

246 louiereederson 2026-04-17 21:14:55 UTC tobyord.com Llama Share 87

The author questions the trend of AI's exponential growth in task length and performance, suggesting that the cost of achieving this performance may be growing exponentially as well, potentially making AI less cost-competitive with humans over time. Analysis of a chart from METR shows that the hourly cost of AI agents is increasing with task duration, suggesting that forecasting AI's ...

The simple geometry behind any road

68 azhenley 2026-04-18 07:14:55 UTC sandboxspirit.com Llama Share 9

The author explains how to generate smooth roads using lines and circular arcs by interpolating between abstract cross-sections called profiles, and describes a method to connect two profiles using a two-line fillet construction. The author also discusses how to handle edge cases, such as roads that shift or turn, by using cubic Hermite splines to find a good candidate position and ...

A simplified model of Fil-C

188 aw1621107 2026-04-17 22:14:55 UTC corsix.org Llama Share 100

Fil-C is a memory-safe implementation of C/C++ that uses a garbage collector and rewrites unsafe code into safe code, including adding AllocationRecord* variables to track memory usage. The simplified model of Fil-C includes a compiler pass that rewrites C/C++ source code, a garbage collector, and additional features such as invisible_bytes and a parallel concurrent incremental collector.

Show HN: Smol machines – subsecond coldstart, portable virtual machines

373 binsquare 2026-04-17 18:14:55 UTC github.com/smol-machines Llama Share 122

Smolmachines is a tool for running custom Linux virtual machines locally with sub-second cold start, cross-platform support, and elastic memory usage. It allows for sandboxing untrusted code, packing workloads into portable executables, and using git and SSH without exposing keys.

Hyperscalers have already outspent most famous US megaprojects

234 nowflux 2026-04-17 17:14:55 UTC twitter.com/finmoorhouse Full Share 183

Something went wrong, but don’t fret — let’s give it another shot. Some privacy related extensions may cause issues on x.com. Please disable them and try again.

"cat readme.txt" is not safe if you use iTerm2

229 arkadiyt 2026-04-17 19:14:55 UTC blog.calif.io Llama Share 133

iTerm2's SSH integration feature can be exploited by impersonating the remote conductor through terminal output. This allows an attacker to execute arbitrary commands on the local machine.

Slop Cop

205 ericHosick 2026-04-17 17:14:55 UTC awnist.com Llama Share 129

Slop Cop is a browser-based writing editor that flags generic LLM prose patterns and offers deeper analysis with an Anthropic API key. It helps improve writing by identifying and suggesting edits for common structural and rhetorical issues.

Rewriting Every Syscall in a Linux Binary at Load Time

67 riteshnoronha16 2026-04-18 06:14:55 UTC amitlimaye1.substack.com Llama Share 26

A binary rewriter replaces syscall instructions in a process's code with a trap that redirects to a custom handler, allowing for complete control over the process's interaction with the outside world. This approach provides a foundation for a minimal VM runtime where untrusted code can run inside a controlled environment with full visibility and control, at a cost of under a microsecond per syscall.

Show HN: PanicLock – Close your MacBook lid disable TouchID –> password unlock

214 seanieb 2026-04-17 17:14:55 UTC github.com/paniclock Llama Share 99

PanicLock is a macOS utility that instantly locks the screen and disables Touch ID with a single click or laptop lid closure. It requires a one-time admin password setup to install a privileged helper tool.

Middle schooler finds coin from Troy in Berlin

251 speckx 2026-04-17 15:14:55 UTC thehistoryblog.com Llama Share 116

A 13-year-old in Berlin discovered a 2,300-year-old bronze coin from ancient Troy, now on display at the PETRI Museum. The coin likely traveled along ancient trade routes, possibly kept as a charm or offering to the dead, rather than used for a business transaction.

Binary Encodings for JSON and Variant

5 jincongho 2026-04-18 12:14:55 UTC jincongho.com Prefix Share 0

In this post, we’ll look at how binary encodings of JSON speed up repeated queries, why BSON isn’t enough for that job, and how VARIANT may ultimately supplant JSON in databases. The internal design trade-offs behind these binary encodings are interesting yet rarely discussed. You’ll see how even a straightforward binary encoding can materially improve retrieval performance. By the end, we’ll ...

Show HN: Sfsym – Export Apple SF Symbols as Vector SVG/PDF/PNG

17 olliewagner 2026-04-18 08:14:55 UTC github.com/yapstudios Llama Share 5

sfsym is a command-line tool for exporting Apple SF Symbols as SVG, PDF, or PNG. It reads vector paths directly from macOS's symbol renderer.

NASA Force

290 LorenDB 2026-04-17 16:14:55 UTC nasaforce.gov Llama Share 283

NASA Force is a hiring initiative for exceptional technologists to join NASA for 1-2 years, solving complex challenges in air and space. You'll work on real missions, take a systems approach, and contribute to advancing human spaceflight and scientific discovery.

Landmark ancient-genome study shows surprise acceleration of human evolution

94 unsuspecting 2026-04-17 23:14:55 UTC nature.com Llama Share 98

Researchers found 479 gene variants that evolved through natural selection in ancient people from western Eurasia after the dawn of agriculture, leading to widespread health changes in present-day populations. The study suggests human evolution accelerated over the past 10,000 years, particularly during the Bronze Age, with changes in genes linked to immunity, skin tone, and other traits.