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SQLite riscritta in Rust? Perché qualcuno sta provando a toccare il codice “più affidabile” che abbiamo

Dalla libreria embedded che ha invaso ogni dispositivo a un’implementazione moderna con concorrenza, async I/O e vector search: cosa cambia davvero per chi sviluppa app. Nel frontend e nel full‑stack capita spesso di parlare di database come servizi: Postgres gestito, cluster, repliche, connessioni, pooling, credenziali e una lunga lista di “cose che possono rompersi”. Ma esiste un’altra filosofia, più vicina all’idea di “dipendenza” che di “infrastruttura”: un motore SQL che vive dentro l’applicazione. Questa è la ragione per cui SQLite è ovunque. È una libreria, non un server. Legge e scrive su un singolo file su disco. Riduce drasticamente configurazione, porte, processi separati e complessità operativa. Ed è proprio questa semplicità a renderla una delle fondamenta silenziose dell’informatica moderna: la usi in browser, smartphone, desktop app, tool CLI, IoT… spesso senza nemmeno accorgertene. Ora immagina di riscrivere tutto da capo, in Rust, cercando di essere compatibile al 100% e allo stesso tempo più “moderna”. Sembra un’idea folle per definizione—finché non inizi a guardare ai limiti pratici che oggi emergono in molte applicazioni. Perché toccare SQLite, se funziona così bene? SQLite non è “il problema”. Anzi: è considerata estremamente robusta perché è conservativa, minimalista, e custodita con un rigore quasi maniacale. Il punto è un altro: il suo modello di sviluppo e manutenzione è atipico rispetto a quello che molti intendono per open source collaborativo . Il codice è disponibile e utilizzabile liberamente, ma l’evoluzione è guidata da pochissime persone e—di fatto—non segue la dinamica classica delle contribution esterne. Questa scelta ha un effetto collaterale positivo: riduce il rischio di regressioni introdotte da cambiamenti non coerenti con la visione del progetto. Ma ha anche un costo: se la tua azienda o il tuo prodotto hanno esigenze nuove (concorrenza più spinta, I/O non bloccante, funzionalità specifiche), “aspettare che arrivi upstream” n

2026-06-20 原文 →
AI 资讯

Claude Fable 5 on Bedrock Requires Sharing Inference Data with Anthropic

Using Claude Fable 5 or Mythos 5 on Amazon Bedrock requires opting into provider_data_share, sending prompts and outputs to Anthropic for 30-day retention with human review. Previous Bedrock models kept inference data inside the AWS boundary. Three days after launch, Anthropic asked AWS to revoke access to both models citing US export control compliance. By Steef-Jan Wiggers

2026-06-20 原文 →
AI 资讯

AWS Adds Multi-Region Replication to Amazon Cognito Identity Service

AWS recently introduced Amazon Cognito multi-region replication, which automatically replicates user identities and user pool configurations from a primary region to a secondary one. This enables applications to continue authenticating users from a replica region during outages, without requiring custom replication and failover mechanisms. By Renato Losio

2026-06-20 原文 →
AI 资讯

SwitchBot’s Standing Circulator Fan is worth fighting for

I can't remember the last time I got excited about a fan. Normally, I just buy whatever Vornado or Dreo model fits my budget, but that was before I started testing the battery-powered Standing Circulator Fan from SwitchBot. As the name indicates, the SwitchBot fan is a 3D circulator - a fancy way of saying […]

2026-06-20 原文 →
AI 资讯

Why Most People Fail to Learn DevOps (And The 2 Books That Changed Everything for Me)

If you're learning DevOps right now, there's a high chance you're experiencing at least one of these problems: Watching endless YouTube tutorials but forgetting everything after a week. Learning Docker, Kubernetes, AWS, Jenkins, Terraform separately without understanding how they fit together. Feeling overwhelmed by the massive DevOps roadmap. Jumping from one course to another without making real progress. Thinking you're learning fast when you're actually just consuming content. I know this because I made the same mistakes. When I first started learning DevOps, I thought mastering tools was the goal. I was wrong. The biggest challenge wasn't Docker, Kubernetes, AWS, or CI/CD. The real challenge was understanding why DevOps exists in the first place. Once I understood that, everything became easier. And two books helped me more than dozens of random tutorials. 🥇 Book #1: The Phoenix Project 👉 Buy Here If you're struggling to understand why companies use DevOps, start with this book. Unlike traditional technical books, The Phoenix Project teaches DevOps through a story. You'll follow an IT manager trying to save a failing company while dealing with: Constant production outages Deployment failures Team conflicts Slow software releases Business pressure As the story unfolds, you'll naturally learn: ✅ DevOps principles ✅ Bottlenecks and constraints ✅ CI/CD concepts ✅ Automation thinking ✅ Why collaboration matters The best part? You don't need years of experience to understand it. Even if you're a student learning AWS, Docker, Kubernetes, and Linux, this book makes complex DevOps concepts feel simple. Why I Recommend It Most beginners try to learn tools before learning principles. This book fixes that mistake. 🥈 Book #2: The DevOps Handbook 👉 Buy Here Once you understand the mindset behind DevOps, it's time to learn the practical side. That's where The DevOps Handbook comes in. Think of it as the blueprint used by high-performing engineering teams. Inside you'll learn:

2026-06-20 原文 →
AI 资讯

The agent economy this week: four ways to pay, zero ways to know who you're paying

Most weeks in the agent economy look like a pile of unrelated announcements. This one had a theme hiding in it. Four different teams shipped progress on agent commerce, and if you line them up, they're all solving the same half of the problem — and all leaving the same half open. This is a builder's map. No leaderboard, no "who wins." Just what each thing is, what it does well, and the question none of them answer yet. The rails that shipped Mastercard Agent Pay for Machines. Mastercard's agent-payment program continues to roll, with 30+ partners spanning crypto and TradFi (Aave Labs, Alchemy, Anchorage, BVNK, Coinbase, MoonPay, OKX, Polygon, Ripple, Solana). The mechanically interesting part: agent payment authorizations get recorded to Polygon. A TradFi network is writing agent-spend permissions on-chain. That's a real signal about where this is heading. x402. Coinbase's HTTP-402 payment protocol keeps expanding its reach — it's now usable behind mainstream web infrastructure (AWS/CloudFront paths), which lowers the integration cost for ordinary web services to charge agents per request. Worth noting alongside the growth: standalone x402 transaction volume is well off its peak (OKX Ventures put the drop around 92% from the November high). The protocol is spreading even as raw volume cools — rails proliferate faster than they fill. Eco. A cross-chain stablecoin orchestration layer that abstracts routing, solving, and finality across ~15 chains. Where a payment intent can't move natively, Eco figures out the path. This is genuinely useful — it's the "make the stablecoin show up on the right chain" problem — but orchestration is routing, not atomic exchange. ERC-8004 (Trustless Agents). Not a rail at all — an identity and reputation layer for agents, with a v2 direction that leans into MCP. This is the one that actually points at the gap the others leave. More on that below. The thing they have in common Mastercard, x402, and Eco are all answers to "how does an agent

2026-06-20 原文 →
AI 资讯

🚀 I Ran Claude Code on Every New Claude Model. Here's What Actually Ships.

Fable, Mythos, Opus 4.8, Sonnet 4.6, Haiku — Anthropic's 2026 lineup is no longer "one model you talk to." It's a fleet you route between. I spent a month inside Claude Code orchestrating all of them across real codebases. Here's which model to reach for, when, and the routing playbook that quietly doubled my throughput. Why I Went Down This Rabbit Hole (Again) Last time I wrote about Claude Skills and called Claude Code the killer host for them. Since then, two things happened that changed how I work day to day. First, the models got genuinely strange-good . In the span of a few months Anthropic shipped Sonnet 4.6, Opus 4.8, and then an entirely new tier above Opus — the Mythos class — released to the public as Claude Fable 5 . We went from "the AI suggested a decent diff" to Stripe reporting that Fable 5 ran a codebase-wide migration on a 50-million-line Ruby codebase in a single day — work that would've taken a team over two months by hand. Second, Claude Code stopped being a single-model tool. With a fleet of models at different price/speed/intelligence points, the highest-leverage skill in 2026 isn't prompting — it's routing . Knowing which model to put on which task is the difference between burning $200 of tokens on a typo fix and one-shotting a multi-service refactor. So I did the obvious thing: I wired all of them into Claude Code and ran them against real work for a month — bug fixes, migrations, greenfield features, test suites, the boring stuff and the scary stuff. This is what I learned. TL;DR The lineup is now a ladder : Haiku → Sonnet 4.6 → Opus 4.8 → Fable 5 → Mythos 5. Each rung trades cost for capability and patience for long-horizon autonomy. Sonnet 4.6 is your default. Frontier-ish coding at $3/$15 per million tokens with a 1M-token context window . Most of your work should live here. Opus 4.8 is the reliable senior. Better judgment, ~4× less likely to let its own code bugs slide, and it powers dynamic workflows — hundreds of parallel subagents i

2026-06-20 原文 →
AI 资讯

Treat prompt libraries as first-class deliverables for reliable AI code assistance

A working prompt library is the main event, not an appendix. The industry still treats prompts as some half-baked spitball left in a README, or, worse, a plaintext blob stapled to package.json and forgotten. That's a waste of compute and credibility. What powers reliable AI-assisted refactoring, onboarding, or even next-gen code IDEs is not the size of the model but the clarity and context supplied by the actual, shipped prompt set. OTF kits turn this lesson into a repeatable deliverable: every paid template includes 20+ production-tested prompts tied to the real file structure, component API, and product-specific conventions. This is not a suggestion; it's structural. The takeaway: a real prompt library is as important as your component library. Treat it like one. Start with the pain: why blank chat boxes don't scale The web is full of “integrations” that paste a blank chat input over your codebase and call it an “AI coding assistant.” The result: hallucinated function names, invented conventions, broken import paths. Here’s what happens in real life: Dev: "Add a social login button." AI (blank prompt): "Sure! Insert <SocialLoginButton> in your LoginScreen.js." Dev: (There’s no such component. There's not even a LoginScreen.js.) Short: A generic prompt with zero context simply can't know your conventions, files, or patterns. The agent will either fail, hallucinate, or pepper you with clarifying questions you have already answered in your product architecture. Takeaway: Prompting without context is coding without types — fragile guesses instead of structured outcomes. What a first-class prompt library enables When the prompt library ships with the codebase, it looks like this: Every prompt knows the folder structure (e.g., features/auth , screens/Settings/index.tsx ). Conventions are hard-coded: naming, import styles, design token usage. Endpoints and integration points (e.g., “update the Stripe webhook handler in api/webhooks/stripe.ts ”) are spelled out. The promp

2026-06-20 原文 →
开发者

I Benchmarked 17 Image Conversions on My Production Server. Some Results Were Not What I Expected.

I run Convertify , a free image converter built on Rust and libvips. Last week I decided to stop guessing about format performance and actually measure it. I took 50 real images (26 PNGs, 24 iPhone HEIC photos), ran 17 conversions through the production pipeline, and recorded every file size and encode time. Some results confirmed what everyone says. Others did not. The three results that surprised me 1. Converting HEIC to JPG makes files 14% bigger , not smaller. This one hurt. "Convert iPhone photos to JPG" is probably the most common advice on the internet. But HEIC wraps the HEVC codec, which compresses roughly 2x better than JPEG. Going from a better codec to a worse one means the file grows. Every time. If you actually want smaller iPhone photos: HEIC to WebP saves 43%, HEIC to AVIF saves 57%. 2. AVIF encodes 7x slower than WebP for 10% more compression. AVIF Q63: 55 KB, 1.30s per image. WebP Q80: 61 KB, 0.19s per image. That is a 10% size difference for a 7x speed penalty. For a single hero image, nobody cares. For a batch pipeline processing thousands of product photos, that is the difference between 3 minutes and 21 minutes. 3. PNG at 600 DPI is smaller than PNG at 300 DPI when rasterizing PDFs. This was the weirdest one. I was benchmarking PDF-to-image and noticed PNG output shrank from 2,221 KB at 300 DPI to 1,660 KB at 600 DPI. I spent an hour convinced I had a bug. Turns out it is a real property of PNG encoding. Higher DPI renders smoother gradients between adjacent pixels, and PNG's prediction filters (Paeth, sub, up) compress smooth gradients dramatically better than the sharp edges you get at lower resolutions. Not a bug. Just PNG being PNG. The quick reference table Conversion Size change Speed JPG to WebP Q80 -64% 0.19s JPG to AVIF Q63 -68% 1.30s PNG to WebP Q80 -92% 0.21s PNG to JPG Q85 -86% 0.07s HEIC to JPG Q85 +14% 1.90s HEIC to WebP Q80 -43% 5.64s HEIC to AVIF Q63 -57% 14.52s WebP to JPG Q85 +60% 0.09s AVIF to JPG Q85 +80% 0.15s What I actual

2026-06-20 原文 →
AI 资讯

Python for Beginners — Part 2: Variables, Data Types & Numbers

Part 2 of a beginner-friendly series on learning Python from scratch. In Part 1 , we installed Python, wrote our first program, and learned the syntax rules that hold everything together. Now it's time to start storing and working with information — which means variables and data types. What is a Variable? A variable is a name that points to a value stored in memory. Think of it as a labeled container you can put something into, and refer back to later by name. name = " Ramesh " age = 25 Unlike many other languages, Python doesn't need you to declare a variable's type ahead of time. You just assign a value with = , and Python figures out the type on its own. This is called dynamic typing . x = 5 # x is an integer x = " hello " # now x is a string — totally legal in Python This flexibility is convenient, but it also means you need to be a little more careful — Python won't stop you from changing a variable's type halfway through your program, even if that wasn't your intention. Variable Naming Rules Python is strict about how variable names can look: Must start with a letter or an underscore ( _ ) — never a number. Can only contain letters, numbers, and underscores. Cannot be a Python keyword ( class , for , if , etc.). Are case-sensitive — age , Age , and AGE are three different variables. age = 25 # valid _age = 25 # valid age2 = 25 # valid 2 age = 25 # invalid — cannot start with a number my - age = 25 # invalid — hyphens aren't allowed Naming conventions Python's style guide (PEP 8) recommends snake_case for variable names — lowercase words separated by underscores: first_name = " Ramesh " total_score = 95 Assigning Multiple Variables Python lets you assign several variables in a single line, which keeps code compact and readable. # One value to multiple variables x = y = z = 10 # Multiple values to multiple variables name , age , city = " Ramesh " , 25 , " Chennai " Data Types in Python Every value in Python belongs to a data type, which determines what kind of

2026-06-20 原文 →
AI 资讯

The ₹0 Automation Stack: Enterprise-Grade Workflows Without Paying for SaaS

₹37,500 per month. That was the SaaS bill a Jaipur-based textile exporter was paying for automating invoices, GST reconciliation, and shipping notifications across three platforms. Three dashboards, three logins, three support tickets every time something broke. I replaced all of it with Python scripts running on a ₹500/month VPS. The recurring cost dropped to effectively zero — and the workflows actually became more reliable. This isn't a hypothetical framework. This is the exact stack I've deployed across 11 Indian businesses over the past 18 months, from CA firms filing ITR returns to stock traders screening 150+ equities before market open. Every tool in this stack is free. Every workflow runs in production today. Why Indian Businesses Overpay for Automation Most business owners discover automation through SaaS marketing. The pitch is compelling: drag-and-drop workflows, no coding required, instant results. What the pricing page doesn't tell you is that the "Starter" plan handles 100 tasks per month, and your GST reconciliation alone burns through that in three days. The real cost isn't the subscription — it's the upgrade treadmill. You start at ₹2,000/month, hit the task limit by week two, upgrade to ₹8,000/month, then discover that the webhook integration you need is locked behind the "Business" tier at ₹25,000/month. For businesses processing under 10,000 transactions monthly — which includes the vast majority of Indian SMBs, freelancers, and professional firms — a Python-based stack isn't just cheaper. It's more flexible, more transparent, and entirely under your control. The Stack: Seven Layers, Zero Recurring Cost Here's every component of the automation stack I deploy for clients. Each layer is free, battle-tested, and replaceable without rebuilding the entire system. Layer 1 — Logic & Scripting: Python 3.11+ The backbone of every automation. Handles API calls, data transformation, conditional logic, and error handling. Free forever, runs anywhere. Layer

2026-06-20 原文 →
AI 资讯

Python for Beginners — Part 1: Getting Started & Syntax

A beginner-friendly series on learning Python from scratch, one concept at a time. If you've ever wanted to learn programming but felt intimidated by curly braces, semicolons, and confusing syntax — Python is where you start breathing easy. It reads almost like English, and it's one of the most in-demand languages in the world today, used everywhere from web apps to data science to automation scripts. This is Part 1 of a beginner series that will take you from "what even is Python" to writing real, working programs. Let's begin. What is Python? Python is a general-purpose programming language created by Guido van Rossum and first released in 1991. It's popular because of three big reasons: It's beginner-friendly. The syntax is clean and close to natural language. It's versatile. You can build websites, automate tasks, analyze data, train machine learning models, or write small scripts — all with Python. It has a massive ecosystem. Thousands of ready-made libraries mean you rarely build things from scratch. Python runs on Windows, macOS, and Linux, and it's free and open source. Installing Python Most systems can run Python after a quick install: Go to python.org/downloads and grab the latest stable version. During installation on Windows, make sure to check "Add Python to PATH" — this saves you a lot of headaches later. Verify the install by opening your terminal (Command Prompt, PowerShell, or your Mac/Linux terminal) and typing: python --version If you see something like Python 3.13.0 , you're good to go. Tip: On some systems (especially macOS/Linux), you might need to type python3 instead of python . Your First Python Program Open a terminal, type python , hit Enter, and you'll land inside the Python interactive shell . Try this: print ( " Hello, World! " ) You should see: Hello, World! Congratulations — you just wrote your first Python program. print() is a built-in function that displays output on the screen. For anything beyond one-liners, you'll want to write

2026-06-20 原文 →
AI 资讯

Solstice Assassin

This is a submission for the June Solstice Game Jam ( https://dev.to/challenges/june-game-jam-2026-06-03 ) What I Built I built Solstice Assassin, a tactical stealth-action game set inside a collapsing digital mainframe. You play as Alex, a self-aware digital anomaly trapped inside the Solstice Grid, a secure virtual system originally created by Alan Turing. Alex awakens with almost no memory except one critical piece of information: «CREATOR: ALAN TURING» The catch? Today is the Summer Solstice, the longest day of the year, and at midnight the system will execute a complete purge of all dynamic data. Alex has one final day to recover lost memories, outsmart the system's security forces, and find a way to survive. Gameplay combines tactical movement, stealth, procedural level generation, enemy AI, and resource management. Players infiltrate security sectors, collect awareness data, avoid or eliminate hostile "Cleaners", and manage powerful abilities such as Dash, Cloak, Radar, and Time Warp. The Solstice theme isn't just part of the story—it directly affects gameplay. Throughout each mission, the system progresses through different Solar Phases: 🌅 Golden Dawn ☀️ High Noon 🌇 Crimson Sunset 🌑 Eclipse Each phase changes visibility, stealth effectiveness, enemy behavior, and the overall tactical landscape. High Noon makes players highly exposed, while Crimson Sunset rewards stealth and careful planning. By the time Eclipse arrives, the entire system begins breaking down. My goal was to create a game where the passing of the longest day isn't just a background theme but something the player constantly feels through the mechanics themselves. Video Demo https://youtu.be/48RM1iTZjOg?si=JYz86wVzNMjeZmmw In the video I demonstrate: Tactical movement and infiltration Dynamic Solar Phase transitions Enemy AI behavior and pathfinding Awareness recovery and progression systems Alex's abilities AI-generated mission briefings and voice interactions Procedural level generation End-o

2026-06-20 原文 →
AI 资讯

Load late, load little: just-in-time context for conversation history

Most agents drag their entire past into every turn. A better default: keep a thin index of what was said hot, and fetch only the few turns you actually need — intact, on demand. Code: github.com/NirajPandey05/jit_context There is a quiet assumption baked into how most agents handle memory: that more context is safer than less. If the model might need something, put it in the window. The conversation grows, every prior turn rides along on every new request, and we trust the model to find the part that matters. That assumption breaks twice. It breaks on cost , because an agent loop re-sends its whole window on every step — a hundred stale turns aren't paid for once, they're paid for on turn 101, 102, and every step after. And it breaks on quality , because models don't read a long window evenly. Relevant facts buried in the middle get underweighted; irrelevant bulk competes for attention with the thing that actually answers the question. Past a point, a bigger context produces a worse answer, not just a costlier one. So the interesting question isn't "how do we fit more in?" It's "how do we keep the window small and dense without losing the one old turn that matters?" This post is the design we built around that question — for the specific case of long conversation history — plus the benchmark we used to keep ourselves honest. 01 · The mechanism: a hot index over a cold store The design borrows directly from how computers have always managed memory that doesn't fit: a small fast tier that's always present, a large slow tier that holds the bulk, and a rule for moving things between them. Virtual memory pages between RAM and disk. We page between the context window and an external store — for attention instead of address space. Concretely, there are two tiers. The cold store holds every turn at full fidelity, keyed by id — nothing is thrown away. The hot index holds one compact entry per turn: a short summary, a little metadata (entities, whether the turn recorded a dec

2026-06-20 原文 →
AI 资讯

How AI Will Shape the Technology Industry in 2027

How AI Will Shape the Technology Industry in 2027 We're roughly 6 months out from 2027, and the signals are already converging: AI is not coming — it has arrived, and the next wave will be fundamentally different from everything that came before it. For developers and tech professionals, 2027 isn't a distant horizon. It's the next major inflection point to prepare for now. Here's what the research, analysts, and industry leaders are saying about what's ahead. From General-Purpose to Task-Specific: The Enterprise AI Shift One of the clearest signals comes from Gartner (April 2025): by 2027, organisations will use small, task-specific AI models three times more than general-purpose large language models. The era of "one model to rule them all" is already ending at the enterprise level. Companies are learning that a fine-tuned, domain-specific model trained on their proprietary data consistently outperforms a generic LLM on their specific workflows. Faster, cheaper, more accurate, and harder for competitors to replicate. For developers, this has real implications: Skills in fine-tuning, RAG (retrieval-augmented generation), and model evaluation become more valuable than prompt engineering alone The ability to build and maintain internal AI pipelines on private data will be a core engineering competency Generic API integrations to OpenAI or Anthropic get replaced — or layered under — proprietary model infrastructure The companies building and maintaining these specialised models will have durable competitive advantages. The ones that don't will be running on shared infrastructure that their competitors can access equally. The Macroeconomic Wake-Up Call: AI Hits GDP in 2027 Goldman Sachs projects that AI may start to meaningfully boost US GDP in 2027 — marking the first measurable macroeconomic signal of the current AI wave. Paired with estimates that ~25% of tasks in advanced economies could be automated by 2027 (10–20% in emerging markets), the scale of workforce restr

2026-06-20 原文 →
AI 资讯

How to Access 50+ Chinese AI Models With One API — No Code Changes Required

If you've been following the AI market lately, you already know the headline numbers: DeepSeek V4 costs about 3% of what GPT-4o charges per token. GLM-4 runs benchmarks competitive with GPT-4 at roughly one-twentieth the price. Qwen delivers multilingual performance that rivals Claude for a rounding error in your cloud bill. The spreadsheets look incredible. The problem is actually using these models. Signing up for each provider means navigating Chinese-language dashboards, topping up separate wallets, managing six different API key formats, and dealing with SDKs that don't follow any consistent convention. Most developers give up after the second integration. That friction is why, despite the economics being objectively absurd in 2026, most teams still default to a single Western provider and eat the cost. AIWave exists to kill that friction. One API key. One endpoint. Fifty-plus models across eight Chinese labs, all speaking standard OpenAI-compatible format. Zero code changes to switch between DeepSeek, GLM, Qwen, MiniMax, and everything else. This post covers how the platform works under the hood, what the request lifecycle looks like, and how to integrate it in any language that can speak HTTP. The Fragmentation Problem, Quantified Before getting into the solution, here's what the Chinese LLM landscape actually looks like as of June 2026: Provider Flagship Model API Format Auth Method SDK Language DeepSeek V4-Pro Custom (DS format) Bearer token + signature Python, JS Zhipu GLM-4.5 OpenAI-compatible-ish JWT with expiry Python, Java Alibaba Qwen-3-Max DashScope (Alibaba) AK/SK + HMAC Python, Java, Go MiniMax MiniMax-Text-01 Custom REST API Key + Group ID Python Moonshot Kimi-K2 OpenAI-compatible API Key Python, JS Baidu ERNIE 4.5 Qianfan (Baidu) OAuth 2.0 Client Cred Python ByteDance Doubao-Pro Ark (Volcengine) IAM AK/SK + SigV4 Python, Go 01.AI Yi-Lightning OpenAI-compatible API Key Python Eight providers, seven different authentication schemes, four distinct A

2026-06-20 原文 →