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sys13

126 karma · joined January 19, 2017

Web, data, and AI Engineer. Ex-Databricks - email: daniel.arrizza at gmail dot com
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sys13··on Sirius DB
I wonder if the benefit is primarily for transactional vs analytical queries
sys13··on Vortex: An extensible, state of the art columnar file format
I think it would still make sense to compare with those table formats, or is the idea that you would only use this if you could not use a table format?
sys13··on Vortex: An extensible, state of the art columnar file format
How does this compare with delta lake and iceberg?
sys13··on GPT-5-Codex is a better AI researcher than me
The title makes it sound like we have reached the singularity. The real insight here is that amateurs may have a difficult time competing with AI
sys13··on Ask HN: What are you working on? (September 2025)
MAXSTACK: Web framework for rapidly building SaaS apps with AI - trying to enable the next wave of 'fast-fashion saas'. Think of it like better-auth is doing for auth, I want to do for the rest of SaaS

- comes with common SaaS features pre-built (crud, blog, auth, etc.) - import templates from the framework until you want to customize them - create forms with just a zod schema - good docs, typescript interfaces, a CLI for common tasks, and MCP for your AI agent

If you're building something now or want to - I'd love to help. Could use the experience to make things easier through my framework.

sys13··on Ask HN: Is anyone else sick of AI splattered code
> the best suggestions I've seen are found by linters in CI, and spell checkers

I don't think this is a rational take on the utility of AI. You really are not leveraging it well.

sys13··on Spiral
I wonder how much we need this vs implementing it as part of Delta Lake or Iceberg
sys13··on All vibe coding tools are selling a get rich quick scheme
I'm glad there's vibe coding available to non-tech founders so they can build the equivalent of high-fidelity prototypes. May not be MVP worthy yet, but at least it gets them started.
sys13··on Warp Code: the fastest way from prompt to production
There was an intermediate step where they introduced AI command generation (super useful). Agentic coding follows naturally from that.
sys13··on Launch HN: Skope (YC S25) – Outcome-based pricing for software products
SaaS vendors do these business value assessments, which are useful to the executive buyer and the vendor. The issue I find with them is customers don't want to do them in collaboration with the vendor since the vendor will use that to justify higher prices. 'Outcome' and 'business value' seem somewhat synonymous - so maybe need to focus on the business value more closely (and all the modelling that goes into that). I don't know if all of the billing needs to go through this, but perhaps discounts or bonuses could - at the very least helping with retention.
sys13··on An AI-first program synthesis framework built around a new programming language
Glad to see focus being put on keeping humans in the drivers seat, democratizing coding with the help of AI. The syntax is probably still too verbose to be easily accessible, but I like the overall approach.
sys13··on Kiro: A new agentic IDE
Agents.md is at least used by both codex and GitHub copilot. VSCode has its own thing for instruction files and Claude.md is also its own thing :(
sys13··on RFK Jr.: HHS moves to restore public trust in vaccines
This is a step back for science in the service of public health - I'm sad for the many children that will die needless deaths
sys13··on Databricks in talks to acquire startup Neon for about $1B
Very unlikely that Databricks would be acquired by Azure. So much of their business is on AWS, and they are invested in by AWS/Azure/GCP.
sys13··on Preview: Amazon S3 Tables and Lakehouse in DuckDB
Wonder why not Delta Lake instead, since Iceberg will merge with Delta
sys13··on Show HN: Program Explorer, a container playground
Feedback on the name: I didn't think that it would be about containers. The other platforms you mentioned are more descriptive (jsfiddle, db-fiddle, Go playground, and Rust playground)
sys13··on TypeScript types can run DOOM [video]
Not only is Dimitri an amazing engineer - he's also great at building community and event/video production. Michigan Typescript meetups and videos have a level of polish that goes over and above
sys13··on TypeScript types can run DOOM [video]
Michigan Typescript has an active discord: https://discord.com/invite/DHtwNDTwrR
sys13··on Filed: WP Engine Inc. v Automattic Inc. and Matthew Charles Mullenweg [pdf]
What's sad here is that this dispute isn't likely to make Wordpress any better, but rather send money to lawyers and reduce enthusiasm for the OSS project.
sys13··on Show HN: Rank a random subject every day
There's a lot of possible choices presented to the user, some of them totally out there like 'Ximenia'. Maybe there should be fewer choices, or can group them by what the author might guess are the common choices (where I can focus my attention), then a group with the less common choices. More elaborate things are possible like dynamic grouping and using web/LLM searches to come up with the initial choices.
sys13··on Open table formats are inevitable for analytical datasets
Pool costs become more manageable as you have more clusters sharing the same pool. You can also have it have no incremental cost increase by setting the timeout to be 0, but it makes it less useful. You can have more clusters take advantage of it by using the same instance families. If you purchase reserved instances from Azure/AWS, you might as well make a pool with those as well. You may also want to check out fleet instance types.
sys13··on Open table formats are inevitable for analytical datasets
(I do some training for Databricks) 1. Yeah, cluster startup time can be not fun. Here are some solutions: - pools (keeps instances around so you don't have to wait for the cloud to provision them - serverless SQL warehouses (viable if you're doing only SQL) - one job with multiple tasks that share the same job cluster. Delta Live Tables does a similar thing but with streaming autoscaling - streaming: cluster never needs to go down. Can share multiple streams on the same cluster so they load balance each other
sys13··on Tinysheet
Added '1' to A1. In B1 I added '=A1'. Didn't work :(
sys13··on Use YouTube to improve your English pronunciation
Got a message, 'you have been banned from this site'
sys13··on Matrix and Riot Confirmed as the Basis for France’s Secure Instant Messenger App
Does this make freedom of information requests less useful to the public?
sys13··on A Simulated Stable Planetary System with 416 Planets in the Habitable Zone
Makes me think about Firefly with "dozens of planets and hundreds of moons".