Built my side project with vibe coding. almost shipped chaos. specs saved it. here’s my workflow
i’m building a small side project right now and i went full vibe mode at the start. it was fun until i realized the same thing keeps happening the AI ships fast, and then i spend 2x time unshipping the “helpful” extras so i switched to a simple process that keeps speed but adds adult supervision what i’m building a small SaaS style tool. FastAPI backend, Next frontend, Supabase for auth and db what changed everything for me i write a tiny spec for every feature before i let any tool touch code my spec template goal in one sentence non goals so it doesn’t add random features files allowed to change api contract. request response errors acceptance checks. exact steps to verify rollback plan. what to revert if it breaks my workflow 1 brain dump into Traycer AI and it turns it into a clean checklist spec 2 implement in small chunks with Claude Code or Codex 3 use Copilot for boring glue edits 4 run tests and force the tool to paste command output. no output. not done example acceptance checks i actually use auth try call endpoint with no token. should fail call with valid token. should pass rate limit hit endpoint 30 times fast. should start returning 429 db confirm Supabase RLS blocks cross user reads why i’m posting i’m curious if other side project people do specs like this or if you just raw vibe it and fix later also if you have any good tricks to stop agents from doing “bonus refactors” nobody asked for i want them if you want i can share the exact spec template file i keep in my repo. it’s short and it’s saved me a stupid amount of time
FL score
out of 100
Verdict
high confidence
Competition
8
competitors found, emerging market, funded players
Trend
8 community mentions
An AI-assisted spec generation and workflow tool for solo developers to prevent 'vibe coding chaos' and unwanted AI 'helpful extras' on side projects.
The pain
The gap
Build angle
Strengths
- Extremely specific and relatable pain point for a growing audience (solo builders using AI).
- Strong founder-problem fit, derived from personal experience.
- Clear white space in a crowded market of general PM tools.
- High willingness to pay for a tool that saves significant time and reduces rework.
- Leverages the trend of AI-assisted development, becoming more essential over time.
- Simple MVP (template management) is quickly shippable.
Risks
- The 'AI-assisted' part of spec generation could add significant build complexity for a solo builder.
- Potential for developers to prefer self-managed markdown templates over a dedicated tool if the value isn't clearly superior.
- Distribution requires deep engagement within developer communities.
- Ensuring the tool remains lightweight and focused, avoiding the 'bloat' it aims to solve.
Next steps
- Share the exact spec template file, as offered, to validate demand for the structured approach.
- Gather more specific feedback on the 'Traycer AI' concept: how much AI generation vs. checklist management is desired?
- Build the absolute simplest MVP: a web app for managing and sharing these spec templates, possibly starting with manual input.
- Focus initial AI integration on generating first drafts of specs from user input, rather than full 'agent' capabilities, to manage complexity.
Fly Labs Method
Is the pain real, is there a gap, is it the right time, can one person build it.
- Problem clarity
- 25
- Solution gap
- 23
- Willingness to pay
- 18
- Buildability
- 9
High potential due to clear, specific pain for solo builders using AI, and a significant gap in the market for a dedicated spec-first workflow tool.
Value Equation
Dream outcome and how likely it feels, against the time and effort it costs.
Strong market demand and a clear, differentiated value proposition for a growing niche of AI-enabled solo developers. Build complexity needs careful scoping.
One-Person Business
Curiosity pull, identity fit, and a path from free value to paid for a solo creator.
Excellent problem clarity and creator fit for a niche audience. Simplicity for MVP is high, but advanced AI features could complicate future development.
Viral Frameworks
Hook strength, shareability, and how cheaply it can be tested.
Clear audience and value, but distribution needs focused effort. Validation can start immediately with the existing workflow.
Builder Lens
Evidence the problem exists, timing, defensibility, and a model that fits on a napkin.
Addresses a highly specific, growing pain point for solo developers using AI. A clear narrow wedge and strong future relevance.
Why this verdict
Five lenses, one composite. How scoring works
The angle
This weekend
- Share the exact spec template file, as offered, to validate demand for the structured approach.
- Gather more specific feedback on the 'Traycer AI' concept: how much AI generation vs. checklist management is desired?
- Build the absolute simplest MVP: a web app for managing and sharing these spec templates, possibly starting with manual input.
- Focus initial AI integration on generating first drafts of specs from user input, rather than full 'agent' capabilities, to manage complexity.
Who is already there, emerging market
A visual collaboration tool that organizes projects into boards, lists, and cards, ideal for Kanban-style workflows.
Pricing: Free plan available; Standard: $5/user/month (billed annually), Premium: $10/user/month (billed annually), Enterprise: $17.50/user/month (billed annually for 500 users).
A versatile workspace that combines notes, docs, wikis, tasks, and databases, highly customizable for various workflows.
Pricing: Free plan available; Plus: $8/user/month (billed annually), Business: $15/user/month (billed annually), Enterprise: Custom pricing.
A work management platform that helps teams organize, track, and manage their work, from daily tasks to strategic initiatives.
Pricing: Basic: Free; Starter: $10.99/user/month (billed annually), Advanced: $24.99/user/month (billed annually), Enterprise: Custom pricing.
A powerful issue tracking and project management tool specifically designed for agile software development teams.
Pricing: Free plan available (up to 10 users); Standard: $7.75/user/month, Premium: $15.25/user/month, Enterprise: Custom pricing.
Integrated project management directly within GitHub repositories, offering Kanban boards and table views for tracking issues and pull requests.
Pricing: Free for public repositories; included with various paid GitHub plans (e.g., Team: $4/user/month, Enterprise: $21/user/month for GitHub Enterprise Cloud).
An all-in-one productivity platform offering highly customizable task management, docs, goals, and chat, aiming to replace multiple work apps.
Pricing: Free Forever plan; Unlimited: $7/user/month (billed annually), Business: $12/user/month (billed annually), Enterprise: Custom pricing.
- KanbanqVisit
A fast, lightweight project management tool built for solo developers, creative teams, and small studios, focused on agile structure without bloat.
Pricing: Not explicitly stated, but marketed towards 'small teams & indies' and mentions 'mvp' indicating potential for evolving pricing. The Product Hunt page emphasizes its AI features for task breakdown, sprint summaries, and backlog organization.
- AdeptDevVisit
A lightweight, developer-first project manager built for solo front-end builders, emphasizing fast Kanban, clean tasks, and GitHub integration.
Pricing: Not explicitly stated, but targets 'solo dev or small team'.
What they charge
What people say, 8 mentions
I analyzed 9,300+ "I wish there was an app for this" posts on Reddit. Here is the data on what people actually want.
r/SaaS
Accidently created a community with 3k users and generated some revenue, now a company is threatening to take it away
r/Entrepreneur
Side project I built for my wife's school is now being used by real students and parents
r/Entrepreneur
i replaced the cofounder i couldn't find with an ai agent. it runs my side project while i'm at work.
r/Entrepreneur
I’ve hit the wall with a side project how do people usually handle this?
r/Entrepreneur
How I Built a Side Business Hosting Online Conferences with 550+ Attendees and 45+ Speakers Since 2023
r/Entrepreneur
Built a fully local website change monitor as my first side project – feedback on the approach/webhooks?
r/SaaS
I built a sports analytics engine (14% ROI) as a portfolio project. I validated the tech, but I hate the gambling niche. Where is the best place to sell a "pre-revenue" asset with a proven backend?
r/SaaS
Recent news
Best Project Management Tools for Solo Developers in 2025
ProjectShelf Blog, October 16 2025
The best project management software of 2026
Product Hunt, March 20 2026
6 Best Asana Alternatives in 2026
ProjectShelf Blog, February 05 2026
Proven Strategies to Manage Project Scope Creep
Monograph, February 02 2026
The 7 best Asana alternatives for project management in 2025
eesel AI, October 03 2025
Market signals
The market for solo developer and small team productivity tools is active and growing, driven by the increasing number of side projects and independent developers. There's a clear demand for lightweight, efficient, and affordable solutions that don't overwhelm users with features designed for larger enterprises. Recent news indicates continued innovation, particularly with AI-powered features for task management and workflow automation.
What frustrates people
- Most project management software is overkill for solo developers, with too many features designed for larger teams.
- Generic project management tools often miss developer-specific needs like tech stack tracking, repository management, and deployment links.
- Steep learning curves and excessive setup time for highly customizable tools like Notion.
- Per-user pricing models can become expensive quickly for small teams or those adding members incrementally.
- Cluttered interfaces and bloat that detract from focus and productivity.
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Creating .oiv modpacks for GTA is tedious and error-prone due to buggy project manager software, forcing manual editing of assembly files.
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BreezePDF – Free, in-browser PDF editor
BreezePDF lets you edit, sign, merge, compress, redact, OCR, fill forms, extract tables, and use 30+ more PDF tools — all in the browser, no sign-up. Files never leave your computer.I built it because when people search Google for common PDF tasks, many of the tools they find upload documents to a server. I wanted an option that keeps files local instead.I posted an earlier version on HN last spring: https://news.ycombinator.com/item?id=43880962At the time it only supported a small set of features. Over the last 10 months I rebuilt large parts of it and expanded it to nearly 40 tools, including several ideas that came from comments in that earlier thread.There is also now a desktop app for macOS, Windows, and Linux, plus a CLI/SDK for developers.
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