Idea garden · 2026

A small collection of ideas I'm exploring.

Some are prototypes, some are sketches, some are just notes-in-progress. I share them here to think out loud, get feedback, and find collaborators. Take a look around.

— Minh Dang, Ho Chi Minh City

Ideas in progress

3 active
🎁
Prototype
Thanks Project
A community giving app for Vietnam. Givers post free things, receivers nearby pick them up. Everything free, nothing wasted.
20 screens · v1.1 →
🗑️
Sketch
Public Trash Bin
A smarter, more visible network of public bins for our streets.
early notes →
🚻
Sketch
Public Toilet
Clean, safe, easy-to-find public toilets for everyone in the city.
early notes →
·
Soon
Next idea
Working on it. New cards drop here as I sketch them out.
thanks!

Sharing for better life

Thanks is a community sharing app for Vietnam. Anyone with something they no longer need — a household with extra bread, a restaurant with end-of-day meals, a family with clothes their kids outgrew — can post it in seconds. Students, drivers, shippers, house cleaners, construction workers, and neighbors nearby come pick it up on their route or break. Everything is free. Nothing is wasted.

01

Entities & Domains

Data model
Business flow
🎁
Giver
Personal · Business
Posts
photos, qty, pickup window
📦
Item
Free · time-limited
Claims
reserves a quantity
🫶
Receiver
Browses · picks up
Full lifecycle
1
Giver
Posts the item
upload photos, set pickup time
2
Receiver
Claims the item
reserves quantity, gets pickup code
3
Pickup
Hand-off in person
receiver shows code, giver confirms
4
Giver
Rates receiver
1–5 stars, optional comment
5
Receiver
Sends thanks
rating + thank-you message
Entities
🎁
Givers
Actor
Properties
  • name — display name
  • type — personal · business
  • address — pickup base
  • phone, avatar, bio
  • rating — 1–5 from receivers
  • verified — for businesses
  • joined at, total items given
Features
  • create / edit profile
  • submit items (single or bulk)
  • schedule recurring posts (business)
  • edit / cancel own items
  • view claimants list
  • rate receivers after pickup
  • message receivers
🫶
Receivers
Actor
Properties
  • name, phone, avatar
  • type — student · driver · worker · family · other
  • address — for distance sort
  • rating — 1–5 from givers
  • no-show count
  • joined at, total items claimed
Features
  • create / edit profile
  • browse feed (grid / map / nearby)
  • search and filter items
  • claim items (reserve a quantity)
  • cancel own claim
  • confirm pickup
  • rate givers · send thanks
  • follow merchants
  • message givers
📦
Items (Gifts)
Entity
Properties
  • title, description, photos
  • price — always 0 (Free) for now (reserved for future use)
  • category — food · clothes · furniture · tech · books…
  • quantity total · quantity remaining
  • per-receiver limit
  • pickup window — start / end time
  • pickup location — lat / lng / address
  • expires at
  • status — available · reserved · claimed · expired
  • reason tag — reduce-waste · goodwill (business only)
  • posted by → Giver
Lifecycle
  • get created → AI auto-categorizes
  • get reserved → quantity drops
  • get picked up → claim closes
  • auto-expire on cutoff
  • auto-repost (if recurring)
🤝
Claims
Entity
Properties
  • item → Item
  • claimed by → Receiver
  • quantity reserved
  • claimed at, picked up at
  • status — pending · picked-up · no-show · cancelled
  • pickup code — short code shown to giver
Features
  • get confirmed by giver
  • get marked no-show
  • get cancelled by receiver
  • auto-expire if past pickup window
⭐
Thanks / Ratings
Entity
Properties
  • from → User (giver or receiver)
  • to → User
  • about → Item / Claim
  • score — 1–5
  • comment — short message
  • created at
Features
  • submit after pickup
  • edit within 24h
  • recipient can reply
  • feeds into rating average
💬
Messages & Calls
Entity
Properties
  • kind — message · in-app call · direct call (direct only for Business)
  • from → User · to → User
  • about → Item (context)
  • body, attachments (message only)
  • duration, status — answered · missed · declined (call only)
  • started at, ended at
Features
  • send / receive messages
  • in-app call (default for both Personal & Business)
  • direct call (Business givers only)
  • auto-thread per item
  • phone numbers stay private for Personal
  • report spam / abuse
02

App Screen Design

Prototype
incoming idea…
incoming idea…