标签：#p

I run Sola, a travel app for people who move differently from the traveller the industry was built for. While building it, I kept hitting the same wall. The data I wanted to query did not exist. Not because nobody collected it, but because the schema underneath the whole industry never had a field for it. So on 27 May 2026 I sat down and audited Booking.com. The homepage form, the currency selector, a Bangkok search results page. I wrote down what it accepts and what it refuses. Then I looked at the new AI travel agents shipping on top of it. Here is what I found, and why it matters to anyone building in this space right now. The form is the spec Booking.com's homepage search bar accepts exactly four inputs: A destination, as a single text field A check-in date and check-out date, as one range An occupancy counter, defaulting to "2 adults · 0 children · 1 room" A search button That is the spec. An online travel agency (OTA) is a CRUD app over this spec, and Expedia, Agoda, and Hotels.com run the same four fields. Airbnb lets you skip the dates. The destination stays a single field everywhere. Think about what a spec encodes. The default occupancy is a couple. Not a solo traveller, not a parent with one child, not three generations, not seven people eating from one host's kitchen. The form cannot accept a circuit ("Bangkok, then Hanoi, then Jakarta" forces three separate searches). It cannot accept an open date ("October, not sure which week"). It has no field for the part of a trip where you sleep at family but spend money in restaurants. When you fill that form, you have not searched. You have submitted to a schema. Most of the world's travellers fail the schema before they fail the search. The data receipts I am a builder, so I went for counts, not adjectives. Everything below rendered on the platform on 27 May 2026. Currencies: 52 offered, about 180 in circulation. Eight currencies sit featured at the top of the dropdown. On the day I ran it the order was EUR, US

⚠️ この記事はアフィリエイト広告（プロモーション）を含みます。リンク先で発生した収益の一部が運営者に支払われますが、読者の購入価格には一切影響ありません。 By the end of this article you'll have two runnable Python scripts: a CLIP-based pre-filter that re-checks SDXL Turbo output before it ever hits Pinterest, and a prompt sanitizer that strips artist names + trademarked characters so you don't eat a DMCA. I ran this pipeline for 41 days, generated 6,180 images, and went from a 9.7% Pinterest rejection rate down to 2.6%. Here's exactly what broke and what fixed it. Why SDXL Turbo (1-step, ~0.3s on a 4090) beats SD 1.5 for Pinterest volume First, the conclusion: if you're mass-producing pins, SDXL Turbo's single-step guidance_scale=0.0 generation is the only thing that makes the unit economics work. On my RTX 4090 I clock 0.31s per 512x512 image with Turbo vs 4.8s for a 30-step SDXL base run. That's 15x. Over 6,180 images that's the difference between 32 minutes and 8.2 hours of GPU time. But Turbo has a nasty side effect nobody warns you about: because it's distilled and runs at low resolution by default, its built-in StableDiffusionXLPipeline safety checker (when enabled) throws far more false positives on perfectly benign images — beaches, lingerie-free fashion flatlays, even close-up food. In my first 600-image batch, 58 images came back as black squares from the NSFW checker. 51 of them were photos of latte art and knitted sweaters . So I ripped out the default checker and built my own two-stage gate. Stage 1: Replacing the diffusers safety_checker with a tunable CLIP gate in Python The default safety_checker in diffusers is a binary black box — you get a black image and zero signal about why . For a production loop you need a confidence score so you can set your own threshold. I use OpenCLIP's ViT-B-32 to score each output against a small set of NSFW concept prompts, then compare to a safe-concept baseline. This code actually runs (tested on diffusers==0.27.2 , open_clip_torch==2.24.0 ): import torch import open_clip from PIL import Ima

System-prompt caching alone cut repeat-call costs by half Tool definitions cache separately, perfect for agent loops Conversation history caching pays off after turn three 1-hour TTL beats the default 5 minutes for batch jobs My Anthropic API bill dropped 70 percent last month and I did not change a single model. I changed where the cache breakpoints went. Here are the five patterns I now use on every Claude integration I ship. Pattern 1: Cache The System Prompt First The system prompt is the cheapest win and most people skip it. My agents run with a 4,000 token system prompt that explains the role, the output format, the safety rules, and a few examples. That prompt never changes inside a session. Before caching, I paid full input price for those 4,000 tokens on every single call. With an agent that loops 30 times to finish a task, that is 120,000 tokens of pure repetition. The fix is one parameter. I add a cache_control block with type: "ephemeral" to the last content item in the system prompt array. The first call writes the cache and costs slightly more (cache writes carry a small premium). Every call after that reads the cache at roughly one tenth the input price. Here is the rule I follow: the cached block has to be at least 1,024 tokens for Claude Sonnet, or it gets ignored silently. My 4,000 token prompt clears that easily. If your system prompt is short, this pattern does nothing, so do not bother adding the breakpoint to a 200 token instruction. The order matters more than people expect. The cache works as a prefix. Everything before the breakpoint gets stored. Everything after it is read fresh. So I put the stable stuff (role, rules, examples) up top and the volatile stuff (user query, current date) down below the breakpoint. Reorder this wrong and your cache hit rate collapses because the prefix changes on every call. One real number from my logs: a document-classification job that runs 2,000 times a day. The system prompt is 3,800 tokens. Caching it sav

Claude Code — My daily dev tool Claude Code by Anthropic is the one I use the most for development, by far. What sets it apart from the others: it integrates directly into the terminal and editor, it can read and modify files, navigate an entire codebase, and understand the global context of the project. Not just responding to a copy-pasted snippet in a chat window. In practice, when I have an idea, I ask it to structure the project and challenge my choices. And to be clear: I challenge it too. 😄 I sometimes disagree with its suggestions, and that's often where the conversation becomes interesting. It's a tool, not an oracle. Perplexity — My reference for research Perplexity is my main tool when I need a reliable and verifiable answer. It's a response engine that systematically cites its sources — you ask a question, it answers with excerpts from real web pages and direct links. No more hallucinations without references. However, I use it almost exclusively on desktop. On smartphone, it's flooded with messages pushing the paid version. Understandable from their side, but frankly annoying when you just want to do a quick search. 🙄 Gemini — For those in the Google ecosystem Gemini is Google's AI, and its main advantage is integration with Gmail, Docs, Drive, Sheets, and Google Search. I have a Google Pixel, and on that side, it does integrate very well with its own ecosystem. It's practical for analyzing documents or getting a quick summary without leaving the interface. That said, in terms of responses, it sometimes falters. 😬 Not systematically, but regularly enough that I stay on guard. And if privacy is a priority for you, it's worth thinking twice before entrusting it with your documents — I talk about this in my article on securing yourself on the Internet . ChatGPT — The natural entry point ChatGPT by OpenAI is the most known and most versatile AI. Writing, code, analysis, translation, summary, creativity... it does a bit of everything, often very well. The fre

0A000 feature not supported 는? PostgreSQL 에러 코드 0A000 은 현재 사용하려는 기능이 PostgreSQL에서 지원되지 않거나, 특정 컨텍스트에서는 사용할 수 없음을 의미합니다. 주로 트랜잭션 내부에서 허용되지 않는 명령을 실행하거나, 해당 버전의 PostgreSQL에서 아직 구현되지 않은 SQL 표준 문법을 사용할 때, 또는 복제(Replication) 환경의 제약으로 인해 발생합니다. 실무에서는 특히 CREATE DATABASE , VACUUM , CLUSTER 같은 명령을 트랜잭션 블록 안에서 실행하거나, Logical Replication 슬롯과 관련된 작업을 수행할 때 자주 마주치는 에러입니다. 주요 발생 원인 1. 트랜잭션 블록 내에서 허용되지 않는 DDL 명령 실행 PostgreSQL은 일부 DDL 명령을 트랜잭션 블록( BEGIN ... COMMIT ) 내에서 실행하는 것을 허용하지 않습니다. CREATE DATABASE , DROP DATABASE , CREATE TABLESPACE , DROP TABLESPACE , VACUUM , CLUSTER 등의 명령은 트랜잭션 컨텍스트 밖에서 단독으로 실행되어야 하며, 이를 무시하고 트랜잭션 내부에서 호출하면 0A000 에러가 발생합니다. 2. 특정 PostgreSQL 버전에서 지원하지 않는 문법 또는 기능 사용 SQL 표준에는 정의되어 있지만 PostgreSQL의 해당 버전에서 아직 구현되지 않은 기능을 사용할 때 이 에러가 발생합니다. 예를 들어, 구버전 PostgreSQL에서 LATERAL JOIN , MERGE 문, GENERATED ALWAYS AS (expression) STORED 컬럼 정의 등을 사용하거나, 특정 윈도우 함수 옵션 조합을 사용하는 경우 해당 에러를 만날 수 있습니다. 3. 논리 복제(Logical Replication) 또는 스트리밍 복제 환경에서의 제약 위반 Standby 서버나 Logical Replication 구독자(Subscriber) 측에서 쓰기 작업이나 특정 관리 명령을 실행하려 할 때 0A000 에러가 발생합니다. Hot Standby 상태의 서버에서 DDL을 실행하거나, Logical Replication 슬롯이 활성화된 상태에서 지원되지 않는 방식으로 복제 슬롯을 조작하려는 경우 이 에러를 마주치게 됩니다. 해결 방법 원인 1: 트랜잭션 블록 내 허용되지 않는 DDL 실행 트랜잭션 블록을 제거하고 해당 명령을 단독으로 실행하는 것이 핵심입니다. 아래는 잘못된 예제와 올바른 예제를 비교한 것입니다. ❌ 잘못된 예 (0A000 에러 발생) BEGIN ; CREATE DATABASE myapp_db WITH OWNER = myapp_user ENCODING = 'UTF8' LC_COLLATE = 'ko_KR.UTF-8' LC_CTYPE = 'ko_KR.UTF-8' ; COMMIT ; -- ERROR: 0A000: CREATE DATABASE cannot run inside a transaction block ✅ 올바른 예 (트랜잭션 블록 밖에서 실행) -- 트랜잭션 블록 없이 단독 실행 CREATE DATABASE myapp_db WITH OWNER = myapp_user ENCODING = 'UTF8' LC_COLLATE = 'ko_KR.UTF-8' LC_CTYPE = 'ko_KR.UTF-8' ; VACUUM 명령도 동일한 원칙이 적용됩니다. -- ❌ 잘못된 예 BEGIN ; VACUUM ANALYZE public . orders ; COMMIT ; -- ✅ 올바른 예: 트랜잭션 밖에서 단독 실행 VACUUM ANALYZE public . orders ; -- ✅ 특정 테이블만 선택적으로 VACUUM VACUUM ( VERBOSE , ANALYZE ) public . orders ; 애플리케이션 코드(예: Python psycopg2)에서 자동 커밋을 끈 상태로 VACUUM을 호출하는 경우도 흔한 실수입니다. import psycopg2 conn = psycopg2 . conn

Repository: public-apis/public-apis What public-apis actually is public-apis is a community-curated directory of free and public APIs, maintained by contributors together with staff at APILayer. It is not a library, SDK, or gateway: there is no package to import and nothing to run in production. The repository is essentially one very large, structured README that catalogs APIs across roughly fifty categories, from Animals and Anime to Finance, Machine Learning, Security, and Weather. Each entry is a row in a table with five columns: the API, a short description, the authentication model ( apiKey , OAuth , or none), whether it serves over HTTPS, and whether it sets permissive CORS headers. That last detail is the part most engineers undervalue. Why engineers keep coming back to it The star count, now past 438,000, is less interesting than the metadata discipline. When you are prototyping and need a currency-exchange or geocoding endpoint, the Auth/HTTPS/CORS columns let you filter candidates before you ever open a browser tab. "No auth, HTTPS yes, CORS yes" tells you that you can call the endpoint directly from a front-end spike without standing up a proxy or registering for a key. For throwaway demos, hackathons, internal tools, and teaching material, that triage saves real time. The category index doubles as a map of what kinds of public data are actually available, which helps when you are scoping whether an idea is even feasible. How it is maintained Curation is manual and community-driven: changes arrive as pull requests against the README, governed by a contributing guide, with issues and PRs as the moderation surface. The project's primary language is Python, reflecting validation tooling that checks entries rather than any runtime you would consume. There is also a separate companion project that exposes the list itself as an API. The model is simple and has clearly scaled, but "manually curated" is both the strength and the weakness. Limitations worth statin

Computex 2026 is underway in Taiwan, and we're expecting all manner of flashy computers with jaw-dropping pricetags (or no pricetags at all) as the entire industry navigates RAMageddon. But for desktop PC gamers, AMD has a different pitch. It's relaunching three old components alongside a big new promise: you won't need to buy a new […]

AMD has some new gaming-focused chips for the economy we all live in.

The Radeon RX 9070 GRE is finally available outside of China

Alienware is taking to this year's Computex 2026 in Taipei to announce some cool gaming monitors, most notably two exciting OLED options that are coming at different points this year. First off, the company is debuting the successor to its very first QD-OLED gaming monitor from 2022 with a refreshed design and high-end specs that's […]

Dell is making good on its tease from CES and finally announcing a new XPS 13. The XPS 13 returns as a budget-friendly option, launching in July at a promotional student price of $599 - though that introductory deal only runs until September for back-to-school shopping; it'll start at $699 for everyone else. The $599 […]

Dell, Microsoft, and others are unveiling new laptops to compete directly with the Neo, but not all are learning the right lessons from Apple.

It starts at just $599 for students or $699 for everyone else.

submitted by /u/wineandcode [link] [留言]

submitted by /u/fagnerbrack [link] [留言]

You've seen the developer. Maybe you are the developer. They discover DRY — ✨ Don't Repeat Yourself...

In May, I continued my "One Commit a Day" Challenge and spent more time contributing across different open-source projects. Compared to April, I was able to contribute a bit more and explore a wider variety of repositories. Repositories That Stood Out Some of the projects that left the biggest impression on me were: python-odpt Huggin Face Context Course Human Signal ML ScribeSVG A Stable Checkpoint One milestone I was happy about this month was reaching a stable checkpoint for my Tokyo MCP Server project. It is still a work in progress, but getting to a point where the project feels stable enough to build upon was a satisfying moment. Documentation Matters Another contribution that stood out was helping improve a python-odpt README documentation . It wasn't a large technical contribution, but it reminded me that making a project easier for others to understand can be just as valuable as writing code. Good documentation lowers the barrier for future contributors. Sometimes, a clearer README can help more people than a small code change. Learning Beyond Python One practical lesson I learned this month was that being a Python-focused contributor doesn't mean I can ignore the JavaScript ecosystem . While working with different repositories, I finally installed Node.js and started using npm . Many modern open-source projects rely on TypeScript-based tooling, build systems, or development workflows, and understanding those tools makes contributing much easier. The Biggest Challenge: Finding Information And Communication Matters The biggest challenge I faced wasn't coding. It was documentation. Every repository has its own way of organizing information. There are definitely common patterns, but every project also develops its own style over time. Sometimes the information I need is in the README. Sometimes it's in a wiki. Sometimes it's buried in a docs folder several levels deep. And sometimes it's spread across all three. Open Source Is Also About Navigation As a contri

I do a fair amount of competitor backlink research, and the workflow always annoyed me: open a dashboard, run a query, export a CSV, eyeball it, copy domains into a doc, switch to email. Lots of tab-hopping for what is fundamentally a data-filtering problem an agent should handle. So I wrapped the backlink API I'd been using into an MCP server. Now I stay in Claude Code (or Cursor, Cline, Zed, Windsurf) and just describe the goal. This is the build: the architecture, the four tools, and the one design decision I'm still not sure about. The data source The server runs on the Common Crawl hyperlink webgraph — about 4.4 billion edges across 120 million domains, published quarterly as Parquet. That matters for an MCP tool specifically: the data is open, so there's no scraped-proprietary-index liability in handing it to an agent, and the same query is reproducible by anyone. The HTTP API in front of it ( CrawlGraph ) does the heavy DuckDB work; the MCP server is a thin TypeScript stdio client over it. Keeping the server thin was deliberate — all the query cost, caching, and quota logic lives server-side, so the MCP package stays a ~300-line wrapper that's easy to audit before you hand it your API key. The four tools backlinks → referring domains for a target, with authority scores gap_analysis → domains linking to your competitors but not to you gap_outreach_targets → the composite play (below) releases → list the Common Crawl snapshots backlinks and gap_analysis map 1:1 to API endpoints. gap_analysis is the interesting primitive: submit your domain plus 2-5 competitors, and it returns every domain that links to at least one competitor but not to you, each tagged with a found_on array listing which competitors it links to. The composite tool, and the decision I'm unsure about Most API-wrapper MCP servers are pure 1:1 mappings. I added one opinionated composite tool, gap_outreach_targets , because the raw gap output isn't the thing you actually want — it's the raw materia

This online game helps you learn keyboard shortcuts for a bunch of different apps/software including VS Code and VIM! submitted by /u/ColterRobinson [link] [留言]

Apple isn't just looking to take on Meta in the smart glasses market; it's looking to upend eyewear as a whole, according to Bloomberg's Mark Gurman. When the Apple Watch launched, it wasn't simply competing against the Pebbles and the Motorolas of the world. The company also had Swatch, Fossil, and Seiko in its crosshairs. […]