
Aug. 8-9, 2026 Join #COSCUP x #UbuConAsia @ NTUST, Taipei, TAIWAN The biggest onsite #volunteerhost #opensource event in Asia #Tech #Developers #BytheCommunity
Taiwan (UCT+8)
Joined July 2009
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COSCUP retweeted
Replying to @coscup
just wrapped up #COSCUP, taiwan's biggest open source conference. grateful for the event and all the speakers who shared their knowledge. learned some stuff about loop engineering, coreboot, nix package manager, fedora..tks to organizers, volunteers who made this happen
COSCUP retweeted
Camera live streaming running on a 4.26" e-paper display at @coscup 2026, on top of Linux based Yocto 6.0 upstream 🎉
Huge thanks to our incredibly talented team for pulling this off.
#Yocto #ePaper #coscup
youtube.com/watch?v=b_UPpX7Q…
COSCUP retweeted
Had a great time speaking at @coscup x @UbuConAsia Asia in Taiwan 🇹🇼 on “Building AI-Powered Interactive Maps with Open Data.” Loved meeting everyone and exchanging ideas. Thanks to the COSCUP team for having me! Hope to be back again
#coscup #taiwan #tech
COSCUP retweeted
About to start at @coscup 2026 with the open source hardware track, first presenter @Ainekk0 later @OpenHWFdn and @DeepComputingio is also here plus many other friends, today is our @risc_v track, starting soon....
COSCUP retweeted
🔴 Live in TR-514 Ruby Track
Pawel Lisewski — "The Deterministic Rubyist: Taming Your AI Pair Programmer with Nix"
Unenforced READMEs, empty agent sandboxes — Nix makes the dev environment reproducible enough that you and your AI pair get the same one.
#COSCUP2026 #Ruby #Nix
COSCUP retweeted
🔴 Live in TR-514 Ruby Track
Kasa — "Ruby's ReDoS Defenses: Trade-offs, Rails, and Regexp's Future"
Better regexes aren't the fix. Kasa reads the Ruby core threads behind Regexp's cache optimization (#19104) — Matz approved, but worried about memory.
#COSCUP2026 #Ruby #ReDoS
COSCUP retweeted
🔴 Live in TR514 Ruby Track
Nebiyu Elias Talefe (Neba) — "Building Native Mobile Apps Using Rails"
Shipping real mobile apps with Hotwire Native, from the Rails codebase you already have.
#COSCUP2026 #Ruby #RubyOnRails #HotwireNative
COSCUP retweeted
前田さんのWebアプリケーションのRTLの話、トーク自体は中国語でおこなわれているので聞き取れない(あたりまえ)だけど話は面白い – at Taipei City, Taiwan
COSCUP retweeted
謝謝來聽我議程的大家🥺
Slides: fumitsuki.tw/coscup-2026-loc…
#COSCUP
COSCUP retweeted
🔴 Live in TR-514 Ruby Track
Meng-Ying Tsai — "Locale 何處尋:從 Accept-Language 到 UGC"
Browsers send zh-TW, your locale files say zh-Hant, and Rails Guides just tells you to write "more robust code". So where does locale actually come from?
#COSCUP2026 #Ruby #i18n
COSCUP retweeted
Glad to share that I'll be giving a talk at @coscup on Sunday!
I'll be live coding and submitting a PR to @zeddotdev on the spot.
Fingers crossed that everything goes smoothly! 🤞
coscup.org/2026/en/session/7…
COSCUP retweeted
If you're at @coscup this weekend, watch Zed community champion @dongdong867 live code and submit a PR to our repo during their talk! 🍿
And yes, may the demo gods be with you. 🙏
Glad to share that I'll be giving a talk at @coscup on Sunday!
I'll be live coding and submitting a PR to @zeddotdev on the spot.
Fingers crossed that everything goes smoothly! 🤞
coscup.org/2026/en/session/7…
Glad to share that I’ll be giving a talk at @coscup this weekend!
As a Zed Guild member, I’ll be talking about the history of code editors — from Atom to @zeddotdev.
Hope to see you there! 🚀
coscup.org/2026/session/T37E…
COSCUP retweeted
On Aug 8 at @coscup , I’ll share a real story about building software with AI.
I thought I’d become an AI Team Lead: break down tasks, delegate the work, and wait for delivery.
Instead, the faster AI wrote code, the more time I spent reviewing, testing, and checking whether “done” really meant done.
I became the QA engineer. 😅
That experience led me to build ToppleCat, a Java/JUnit verification gate for AI-delivered code. It verifies a sealed executable contract, then runs hidden tests, property-based testing, and mutation testing as independent gates.
ToppleCat: topplecat.samzhu.dev/
Anyone dealing with the same problem? Come to the talk, or tell me how you’re solving it.
Aug 8 · 14:30 · TR412-2
“I Thought I’d Become the AI’s Team Lead. Instead, I Became a QA Engineer.”
Session:
coscup.org/2026/session/737R…
#AIAgents #Java #PropertyBasedTesting #MutationTesting







































