Mr. SeeFun.Dev
From a React shopping list app in 2025 to dev tools like share-env and wappajs in 2026, built and shipped in public.
He/Him Building, coding, and sharing Github- https://github.com/sifenfisaha https://www.seefun.dev Dm- @see_fun
Mr. SeeFun.Dev is a developer channel that has posted at least once a week for 61 weeks straight. Early on it shared a shopping list app built with React and Tailwind, then grew into full-stack builds like Plus and command-line tools like share-env. It also publishes learning guides on seefun.dev subdomains, covering async JavaScript, Linux server administration and a 90-day Backend Mastery roadmap. Between launches come takes on agentic coding and working with AI.
- The channel has posted at least once a week for 61 weeks in a row.
- Lately it averages 49 posts a week.
- Its most-used word is "people".
The journey.
- Mar – Jun 2025
React warm-up
Early posts were beginner-friendly tips, from opening a GitHub pull request to the JavaScript basics worth knowing before React. Then came a shopping list app built with React and Tailwind, plans for a JavaScript course, and the kickoff of a peer-to-peer DSA program.
Sources#421#453#471#553 - Oct 2025 – Apr 2026
Going full-stack
Plus landed in October 2025: a blog and mini social platform built with React, TypeScript, Node.js, Express and MongoDB. Later posts dug into Next.js server actions, WebSockets, and keeping scheduled jobs running when a server sleeps, trying BullMQ before finding Upstash QStash. In April 2026 came Play Store Submission Auditor, an AI skill that checks Android apps before release.
Sources#749#1041#1160#1200 - May – Aug 2026
A home at seefun.dev
In May 2026 the channel got its first domain, seefun.dev, and over the next few months filled subdomains with guides to Linux servers, async JavaScript and a 90-day Backend Mastery roadmap. In between it shipped share-env, which encrypts a project's .env files so teams can commit them, and v0.2.0 swapped the shared passphrase for per-teammate keys.
Sources#1315#1377#1469#1471 - Sep – Oct 2026
Agents on WhatsApp
September brought wappajs, an open-source TypeScript framework for LLM agents on WhatsApp, alongside a post on how repetitive building such agents for multiple projects had become. Lately the feed mixes takes on agentic coding with practical drops like a list of Telegram channels for dev jobs.
Sources#1983#1985#1923#2286
Building now.
- Shopping list app
A responsive shopping list app built with React and Tailwind, with add/remove items and an order confirmation popup.
Launched2 postsApr 2025– - JavaScript course (@blueniledev)
A JavaScript course, with @blueniledev as its official channel, planned for testing with a first batch in summer 2025.
Building1 postsMay 2025– - DSA Community Program
A peer-to-peer DSA learning program that groups participants by experience to work through daily challenges from its roadmap.
Launched1 postsJun 2025– - Plus
A blog and mini social platform where users write Markdown posts, like, comment, search and explore popular posts and tags.
Launched1 postsOct 2025– - Play Store Submission Auditor
An AI skill that checks Android apps before release for Google Play policy violations, Data Safety mismatches, permission issues and launch blockers.
Launched1 postsApr 2026– - seefun.dev
The channel's own site, live since May 2026, which hosts a roadmap for learning to code.
Launched2 postsMay 2026 – Sep 2026Visit - vps.seefun.dev
A hands-on path from beginner to advanced Linux server administration, for developers who want to understand servers instead of just renting them.
Launched1 postsMay 2026Visit - Tailwind CSS learning repo
A beginner-friendly repo for learning Tailwind CSS, originally created for teaching students.
Launched1 postsJul 2026– - share-env
A command-line tool that encrypts a project's .env files into one committable file so teammates can restore them with one command.
Launched2 postsJul 2026Visit - async.seefun.dev
A guide to asynchronous JavaScript covering the event loop, callbacks, promises, async/await and data fetching, with a complete example.
Launched1 postsAug 2026Visit - wappajs
An open-source TypeScript framework for LLM agents on WhatsApp, with typed tools, per-chat sessions and human handoff.
Launched2 postsSep 2026–
Start here.
- 01
The 90-day Backend Mastery roadmap: 17 systems, hands-on labs and a day-by-day plan.
I built a 90-day Backend Mastery roadmap for developers who want to go deeper into backend engineering. It covers 17 systems across Linux, networking, Docker,...
Aug 17, 202610.8K views - 02
The share-env launch post and the .env-sharing headache that started it.
I got tired of sending .env files in chat groups and manually copying variables into the right folders. It was slow and insecure. So I built share-env. With on...
Jul 26, 20263.3K views - 03
wappajs in a few lines: typed tools, per-chat sessions and human handoff for WhatsApp agents.
Shipped wappajs: an open-source TypeScript framework for LLM agents that live on WhatsApp. Typed tools, per-chat sessions, human handoff, one small agent loop....
Sep 16, 20262.6K views - 04
A guide to async JavaScript, from the event loop to async/await.
A small resource I put together for anyone learning asynchronous JavaScript. It covers Async JS in detail, including: • The event loop • Callbacks • Promises...
Aug 12, 20261K views - 05
Plus, a full-stack blog and mini social platform, with the whole tech stack listed.
New Project: Plus Hey everyone! I just finished working on Plus, a blog & mini social media platform where users can: • Create, edit, and delete blog posts •...
Oct 4, 20254.1K views
In their own words.
I got tired of sending .env files in chat groups and manually copying variables into the right folders. It was slow and insecure.
Your degree can open a door. Your skills are what keep it open.
Fresh from the channel.
Architectural engineering was my dream for so long, then life happened, and somehow I ended up here. Seeing things like this makes me wonder, what if… @sifendev
All hail Opus 5.5 @sifendev
token melemening😭 @sifendev
😭😭 @sifendev
Anyone know a good Claude skill for launching videos? @sifendev
Place: Jemmo 3, Sebrina Restaurant Rating: 9.8/10 @sifendev #JummaReview