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Chen Dahuang

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08.05.2026 · 7 min

DeepSeek V4 Flash stable release, hands-on: cheap, fast, 1M context, built-in search

Pinned

A few days deep-diving the stable DeepSeek V4 Flash release: aggressively cheap, lightning fast, 1M context, official built-in web search, fully open source. The one weakness is multimodality — but you can patch it by combining other models.

DeepSeekModel reviewAI tools

09.09.2026 · 8 min

The First-Party Harness Isn't Always the Best Answer: In the Open-Model Era, Pick Your Model and Harness Separately

Using Claude? Go Claude Code. In the open-model era that instinct deserves an upgrade. The first-party advantage is real, but training a good model and building a good harness are two different kinds of engineering — here's why models and harnesses are now separable choices, plus a positioning map of five harnesses.

AI AgentHarnessTool selection

09.09.2026 · 8 min

Stable, Fast, Productive, Cheap: My AI Coding Stack, Documented

OpenCode + OpenChamber + two DeepSeek V4 Flash subscriptions: 15 projects running code simultaneously and the quota barely moved. The full configuration laid out — context pruning, layered memory, desktop automation, and the "stick with the original pairing" lesson.

OpenCodeAI CodingConfiguration

09.09.2026 · 7 min

TUI Is Killing Your Cognitive Bandwidth: Time to Shatter the "Geek Filter" in AI Coding

A pile of AI coding agents are rushing to ship TUIs, stuffing interaction back into the 1980s terminal paradigm and calling it "immersive" and "respectful of programmers." This piece breaks down the three mechanisms by which TUI systematically lowers your cognitive bandwidth — and why Web UI is the right answer.

AI CodingInteraction designEssay

08.06.2026 · 6 min

After tinkering with Pi Agent, OMP, Codex, and ZCode, why I finally chose OpenCode + OpenChamber

A retrospective on choosing an Agent Harness: three criteria — GUI experience, vendor lock-in, and freedom for secondary development — ruled out Pi Agent, OMP, Codex, and ZCode, and finally settled on the OpenCode core + OpenChamber interface.

AI AgentTool selection

08.06.2026 · 5 min

Giving DeepSeek multimodality: the Qwen-3.7-Flash vision approach

DeepSeek V4 Flash has no multimodality — what do you do for image understanding? After surveying the market, the most cost-effective option right now is Qwen-3.7-Flash: recognizing an image costs almost nothing, and pairing it with V4 Flash patches the gap.

DeepSeekMultimodalityModel review

08.05.2026 · 6 min

DeepSeek's API has built-in web search — freeload the official search via the Responses API

DeepSeek built web search straight into the API: call deepseek-v4-flash through the Responses interface and declare the web_search tool. No third-party search engine integration, no search API key required.

DeepSeekAPIAI tools

06.28.2026 · 4 min

I moved my proxy subscription aggregation to Cloudflare

Original

Merge multiple proxy services plus your own nodes into one single subscription, with routing rules configured server-side — clients just subscribe.

CloudflareCircumventionOpen-source project

06.20.2026 · 10 min

The founding-intention principle: why indie developers must learn to let go

Why do you set out? Who do you set out for? Which problem are you actually trying to solve? A product's sharpness comes from what you dare to cut.

Product thinkingIndie development

06.20.2026 · 8 min

Don't get carried away when users say "that's awesome": pain points vs. itch points

Verbal approval is worth nothing. There's only one hard standard for judging demand: what the user is willing to pay.

Product thinkingDemand judgment

06.18.2026 · 6 min

Debating whether something has value is itself worthless

Our value is not defined by anyone. In the age of AI, how should we understand ourselves?

AI thinkingHumanistic essay

06.16.2026 · 12 min

Gained 1000+ followers in a little over a day — here's what I did

In June I ran my X account seriously and gained 1000+ followers in a little over a day. This post records what I did and the feedback I got.

X operationsContent growth

06.15.2026 · 6 min

2026 indie dev best practices: the Cloudflare "broke-ass all-in-one" stack

The zero-cost tech stack for indie developers: Codex for writing code, GitHub for version control, Stripe for payments, TanStack Start for frontend, Hono + Workers for backend, D1 for database, R2 for storage, KV for caching — all running on Cloudflare.

CloudflareIndie developmentTech stack

06.15.2026 · 8 min

How free users can squeeze Cloudflare dry — how far does the free tier actually get you?

Cloudflare's free tier can carry an entire personal internet infrastructure: DNS, CDN, Pages, Workers, KV, D1, R2, email, Tunnel, AI Gateway and more.

CloudflareFree tierDeployment