Wanxin Ricardo/Independent Developer / AI Product Experimenter / One-Person Company Builder

I am building a long-term personal product line.

Independent development, AI product experiments, and one-person company practice.

8 years as a full-stack developer, 100+ projects shipped, and multiple independent apps launched. Recently, Old Friends Dinner went from build to launch in 48 hours and climbed to #11 in Mainland China's iOS Paid Social chart on the morning of April 15, 2026. I build small, useful digital products and document the full loop from idea, launch, iteration, and monetization.

View products Current focus

Direction

Independent products

Direction

AI product experiments

Direction

One-person company path

Latest proof

Old Friends Dinner: shipped in 48 hours and climbed to #11 in Mainland China's iOS Paid Social chart

From entering the Top 20 after 4 days to reaching #11 on the morning of April 15, 2026, Old Friends Dinner is turning into a clearer product signal, not just a line in a developer bio.

Built to launch

48h

From MVP to downloadable app

Paid Social chart

#11

Mainland China iOS category

Latest position

Top 15

Continued rising from #20

Early rating

5.0

First App Store user feedback

A small product launch is not just finishing code. The real test is whether judgment, development, release, and feedback can fit into a short cycle and guide the next iteration.

App Store record

Old Friends Dinner ranked #11 in Mainland China's iOS Paid Social chart — #11 in Mainland China iOS Paid Social

Old Friends Dinner App Store product page screenshot showing a #11 Social ranking — App Store ranking #11 and early rating

Selected products

These products form the long-term line

This is not a traditional portfolio. Each project reflects a real decision: what to build, what to leave out, who it serves, and whether it deserves more iteration.

03 projects

2 projects are currently highlighted, and 3 have reached a live stage. They are not isolated pieces of work, but samples of how ideas become products and products become long-term assets.

Swipe to browse products

03 items · swipeable

Selected projectLive

Old Friends Dinner

Friend gatherings / coordination

A lightweight coordination tool for dinner plans with people you already know, bringing time options, restaurant choices, attendance, and bill splitting into one simple flow.

Built and launched in 48 hours, then climbed to #11 in Mainland China's iOS Paid Social chart
Create a dinner plan with candidate times, budget, and restaurant direction in one place
Let participants pick available times directly instead of confirming repeatedly in group chat
Close the loop after the meal with a simple AA bill-splitting flow

Next step

Keep refining the full chain from creating a plan to confirming attendance and splitting the bill while watching real paid-user feedback after the #11 ranking.

Selected projectLive

Da Huang Bie Pao

Gold market / real-time tracking

A real-time gold price assistant that puts international spot gold, AU9999, exchange rates, converted prices, and premium data into one focused interface.

Track international spot gold, domestic AU9999, exchange rates, and premium rate in real time
Read international intraday charts and domestic daily charts together
Use alerts, Dynamic Island, Lock Screen, and widgets for quick price checks

Next step

Improve alerts, charts, and quick-glance price surfaces across devices.

Product experimentLive

Heartwarm

Mood journal / quiet companionship

A calm emotional journaling and light companion app that gives real feelings a clean, quiet, low-pressure place to be expressed.

Record a mood, a sentence, a feeling, or something that was hard to say out loud
Receive gentle, restrained responses that help organize emotions slowly
See personal changes through continuous records instead of forcing daily performance

Next step

Keep validating record frequency, companion style, and long-term retention.

Direction

What I am building

Not a set of scattered projects, but a personal business system made of products, AI experiments, public documentation, and long-term monetization.

Operating principles

The goal is not to look bigger. It is to develop my own judgment, product rhythm, and a loop that can hold over time.

Build my own products

After years of delivering projects for others, I want more of that experience to compound inside my own product system.

Put AI into real workflows

I do not treat AI as a demo topic. I test where it actually improves products, workflows, and repeatable output.

Document the loop publicly

Validation, development, launch, iteration, and monetization are part of the asset. I document the process as it happens.

Independent products

AI product experiments

Small useful digital products

Public iteration

One-person company practice

Now

Current focus

The current focus is not starting more projects, but connecting real signals like Old Friends Dinner reaching #11, AI experiments, and public documentation into one long-term line.

Updated

April 2026. The recent priority is refining shipped products and connecting the April 15 ranking signal, development speed, and long-term iteration rhythm.

Current state

Narrowing focus

Not adding more projects, but going deeper on the product line already in motion.

Working style

Ship small

Let real usage decide whether a product deserves more complexity.

Long-term goal

One-person company

Turn products, writing, feedback, and revenue into a steady operating loop.

Products

Use Old Friends Dinner's climb to #11 in the iOS Paid Social chart as a live sample for refining shipped products.

I care more about whether real users download, pay, and keep using a product than adding short-term features.

Connect AI into products and workflows, then test which abilities are worth keeping.

The focus is not novelty. It is reuse, retention, and real efficiency.

Writing

Publicly document the full process from idea, development, launch, iteration, and monetization.

The records are not posture. They help compound judgment and method.

Focus

Reduce scattered effort and keep going deeper on directions that can compound.

Fewer fronts make the products, content, and working rhythm steadier.

Stay connected

Follow product iterations, AI experiments, and one-person company practice. Email and WeChat are both open for concrete questions, long-term collaboration, and same-frequency connection.

Good fit

If you are building products, content, AI tools, or exploring the one-person company path, this is a simple way to stay connected.

Product conversations

For people with a clear direction who want to sharpen the product, reduce noise, and validate faster.

Long-term collaboration

Best for work that values judgment, execution, and product taste over heavy process.

Same-frequency connection

For people following independent development, AI product experiments, and one-person company building.

WeChat Official AccountScan to follow

Longer product thinking, stage reviews, and records of long-term iteration.

Scan with WeChat

WeChat ChannelsScan to follow

A lighter way to follow what I am building recently. Account name: DDK超级个体实验室.

DDK超级个体实验室

DouyinScan to view

Short updates on independent development, AI experiments, and real-life observations. Douyin ID: 70397734437.

@DDK超级个体实验室

Best for formal collaboration, clear problem descriptions, and longer-context communication.

ricardowanxin@gmail.com

WeChat

Scan to add

Best for quick connection, same-frequency conversations, and lightweight collaboration discussion.

DDK超级个体实验室

Before reaching out

For formal collaboration, include context, goals, and timeline in the email. If you just want to connect first, WeChat is fine.

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