Projects, writing and paintings. Work and life in one index.https://www.yuchiacheng.com/https://www.yuchiacheng.com/projects/vesper/https://www.yuchiacheng.com/projects/vesper/A local-first macOS assistant that routes natural language to Notes, Reminders, Mail, Calendar and Contacts, on a local LLM. No cloud, no accounts, no telemetry.Wed, 10 Jun 2026 00:00:00 GMThttps://www.yuchiacheng.com/art/n10-dusk/https://www.yuchiacheng.com/art/n10-dusk/The sun sinking into dark water, in glitchy brush streaks.Tue, 20 Jan 2026 00:00:00 GMThttps://www.yuchiacheng.com/projects/groceryai/https://www.yuchiacheng.com/projects/groceryai/GRO, a group chat where people plan grocery runs together, with an AI teammate that checks inventory, suggests dishes and turns the conversation into a shopping list.Mon, 15 Dec 2025 00:00:00 GMThttps://www.yuchiacheng.com/art/n01-on-stage/https://www.yuchiacheng.com/art/n01-on-stage/A singer at the mic, lit by a slanting orange stage light.Tue, 09 Sep 2025 00:00:00 GMThttps://www.yuchiacheng.com/projects/airbnb-pricing/https://www.yuchiacheng.com/projects/airbnb-pricing/What drives nightly price? EDA, ANOVA, SHAP and hierarchical market segments across 3,982 listings.Sun, 11 May 2025 00:00:00 GMThttps://www.yuchiacheng.com/art/n02-blue-set/https://www.yuchiacheng.com/art/n02-blue-set/A guitarist looking down at the neck, halftone reds under blue light.Wed, 13 Nov 2024 00:00:00 GMThttps://www.yuchiacheng.com/art/n04-sunflowers/https://www.yuchiacheng.com/art/n04-sunflowers/Three sunflowers on a scribbled black ground.Thu, 12 Sep 2024 00:00:00 GMThttps://www.yuchiacheng.com/art/n03-window-rose/https://www.yuchiacheng.com/art/n03-window-rose/A single red rose in slanted afternoon window light.Sun, 01 Sep 2024 00:00:00 GMThttps://www.yuchiacheng.com/art/n06-calla/https://www.yuchiacheng.com/art/n06-calla/A calla lily wrapped in loose looping lines.Wed, 03 Jul 2024 00:00:00 GMThttps://www.yuchiacheng.com/art/n05-held/https://www.yuchiacheng.com/art/n05-held/A hand holding a rose and baby’s breath, in charcoal.Mon, 01 Jul 2024 00:00:00 GMThttps://www.yuchiacheng.com/projects/daily/https://www.yuchiacheng.com/projects/daily/A habit tracker with a GitHub-style heatmap of completed tasks and a daily history.Fri, 22 Dec 2023 00:00:00 GMThttps://www.yuchiacheng.com/art/n08-black-rose/https://www.yuchiacheng.com/art/n08-black-rose/A dark rose surfacing from a brushed charcoal ground.Tue, 19 Dec 2023 00:00:00 GMThttps://www.yuchiacheng.com/art/n09-candle/https://www.yuchiacheng.com/art/n09-candle/A candle burning down in an open hand.Tue, 19 Sep 2023 00:00:00 GMThttps://www.yuchiacheng.com/art/n07-solo/https://www.yuchiacheng.com/art/n07-solo/A guitarist leaning into a solo, sketched in black and white.Mon, 27 Feb 2023 00:00:00 GMThttps://www.yuchiacheng.com/projects/stress-level/https://www.yuchiacheng.com/projects/stress-level/Predicts whether your daily stress is high or low, then grades your work-life balance, from a short questionnaire. Deployed on Streamlit Cloud.Sun, 08 Jan 2023 00:00:00 GMT