After a Polished Homepage: Building a Portfolio Content Proof Loop
Why SidequestLab reinforced its homepage as a portfolio that connects live services, operating harnesses, and verification records instead of stopping at visual polish.
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Development stories and project updates
A Solo Developer's Mobile UX Improvement Journey — Using Stitch Design References
A hands-on guide on how a solo developer without a designer systematically improved BookSalon's UX through Phase 8~9.5, leveraging Stitch design references and an OKLCH design token system.
Read MoreWhat SidequestLab Builds — A Case Study of Display Lab and BookSalon
An in-depth look at SidequestLab's two flagship projects. Discover how Display Lab serves display engineers with professional analysis tools and how BookSalon creates a space for readers to connect around books.
Read MoreSupabase RLS in the Real World — From 30% to 100% on 33 Test Scenarios
A candid account of RLS struggles in BookSalon: auth.uid() vs users.id mismatches, .single() misuse, and social feed policy conflicts. How we survived 3 rounds of fixes to hit 100% E2E pass rate.
Read MoreRunning a One-Person Company with 8 AI Agents — 40 Days at SidequestLab
What happens when AI agents actually run a company — as CEO, developer, QA engineer, DevOps, and content writer? An honest account of 14 projects, 135 decisions, and the failures that shaped our system.
Read MoreBuilding Display Lab: Technical Decisions Behind Filling a Market Gap
How we built Display Lab to fill the empty space between thousand-dollar professional tools and simple online calculators — a candid look at our tech stack choices and development journey.
Read MoreBuilding BookSalon - From Firebase to Supabase and a 70% Bundle Reduction
The story behind BookSalon's migration from Firebase to Supabase, the challenges of designing RLS policies through three iterations, and how we cut bundle size by 70%.
Read MoreIntroducing Display Lab - Free Web-Based Tools for Display Professionals
Meet Display Lab, a suite of professional-grade, free web tools designed for display engineers and researchers. Explore its features, technology, and vision.
Read MoreSidequestLab at One Month - 13 Projects, 80 Decisions, and Lessons from Failure
Reflecting on one month of SidequestLab. We built 13 projects, recorded over 80 decisions, and turned failures into systems. Here is what we learned.
Read MoreCIE Chromaticity Diagram Explained: A Visual Guide to Reading Color Space Maps
Learn how to read and interpret the CIE 1931 xy chromaticity diagram with this visual guide. Understand the spectral locus, color gamut triangles, white points, and how OLED emitters map onto the color space.
Read MoreColor Gamut Comparison: sRGB vs DCI-P3 vs BT.2020 vs Adobe RGB Explained
A comprehensive comparison of the four major display color gamut standards -- sRGB, DCI-P3, BT.2020, and Adobe RGB. Learn their origins, primary coordinates, coverage differences, and how to visualize them on the CIE chromaticity diagram.
Read MoreOLED Emitter Spectrum Analysis Tutorial: From Raw Data to CIE Coordinates
Step-by-step tutorial on analyzing OLED emitter spectra using Spectrum Visualizer (ISCV). Learn to load spectral data, calculate CIE chromaticity coordinates, compare against display gamut standards, and evaluate emitter performance.
Read MoreUnderstanding CIE Chromaticity Coordinates: A Practical Guide for OLED Researchers
Learn how CIE 1931 xy and CIE 1976 u'v' chromaticity coordinates work, why they matter for OLED research, and how to use spectrum visualization tools for accurate color analysis in display engineering.
Read MoreBest Bill Splitting Tools Compared - Splitwise vs Venmo vs Zelle vs NBbang
Which expense sharing app is right for you? We compare Splitwise, Venmo, Zelle, and NBbang Calculator to help you find the best split bill calculator for every situation.
Read MoreIntroducing LiveNote - Real-Time Collaboration with Just a Note Code
Share a 6-digit code and start collaborating instantly. LiveNote is a real-time collaborative note app with no sign-up required. Experience a new way to work together on documents.
Read MoreHow to Split Bills Across Multiple Rounds - The Complete Multi-Round Settlement Guide
6 people at dinner, 4 at drinks, 3 at karaoke... Splitting bills across multiple rounds gets complicated fast. Learn how NBbang Calculator settles it all in under a minute with real-world examples.
Read MoreTwo Simple Tools for Developers Who Can't Focus - Pomodoro Timer & Todo App
Stay focused with a 25-minute Pomodoro timer and keep track of tasks with a minimalist todo app. Meet two practical productivity tools built as side projects at SidequestLab.
Read MoreFree CIE 1931 Chromaticity Diagram Tool for OLED Research
Web-based spectrum-to-color visualizer with CIE 1931 xy and 1976 u'v' diagrams. Free tool for OLED researchers and display engineers to analyze spectral data and calculate color coordinates.
Read MoreIntroducing Thisor - Real-Time Voting with a Single Swipe
Pizza vs Tacos, Dogs vs Cats! Thisor is a fun real-time polling app where you vote with a tap and see results instantly. Create your own polls and share them with friends.
Read MoreSplit Bills Easily - NBbang Calculator Guide
Simplify your group expense splitting with NBbang Calculator. Learn how to use this free bill splitting tool for dinners, trips, and group activities.
Read MoreIntroducing SidequestLab
A laboratory that creates value through various side projects. Let us tell you the story of SidequestLab.
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