Caleb Tutty
tuttinator.bsky.social
Caleb Tutty
@tuttinator.bsky.social
Kiwi living in Jakarta. Consultant, coder and still gradually working on improving speaking Bahasa Indonesia.
Interested in education, policy, AI and technology.

Previously: CTO Eskwelabs, Data Scientist, Data Journalist, software eng
Flurry of news about the Indonesian cabinet reshuffle - Sri Mulyani’s departure the biggest scalp and front page of the Jakarta Post. Not sure how many finance ministers can cause the stock market to fall on their resignation.
September 8, 2025 at 11:53 PM
Another one. VPower is the 95 octane petrol here.
September 7, 2025 at 4:18 AM
Today's task is to try and find a Shell petrol station which still has VPower fuel available. There is apparently a shortage which doesn't seem to affect the state owned Pertamina stations. Probably caused in part by the Pertamina watering down and reimport petrol scandal and import quotas.
September 7, 2025 at 4:10 AM
The Jakarta Post mentions some of the symbolism of pink and green in the Indonesian protests: www.thejakartapost.com/indonesia/20...

Pink for the hijab worn by a now iconic protester and green for the Gojek driver Affan Kurniawan’s jacket - colours cropping up as part of online activism.
September 6, 2025 at 2:39 AM
I'm one of the Builders in Residence for Hugo and Stefan's Building LLM Applications course. I've been hacking around with an idea of a 4X (Explore, Expand, Exploit, Exterminate) game played by agents. Fun weekend project.
July 12, 2025 at 3:38 AM
Flooding again in Jakarta with the heavy rain last night
July 7, 2025 at 12:56 AM
This has tormented me for about a year after I foolishly lost my Duolingo streak at 360 days. Now back at 328 it feels a bit like a Rocky montage… *hums Eye of the Tiger*
September 30, 2023 at 3:21 PM
Lately we've been looking at how to improve diagnostic assessment, and going down that rabbit hole I found this paper: ceur-ws.org/Vol-3033/pap... along with the CEFR-SP dataset: github.com/yukiar/CEFR-SP (from this paper: arxiv.org/abs/2210.11766)

I tried to fine tune a BERT model...
September 26, 2023 at 2:18 AM
I've been thinking a lot lately about AI tools which help English as an Additional Language speakers learn English. Through my consulting work with an Indonesian ed-tech I built a cross platform React Native project and supporting infra for outside-of-the-classroom family activities app. #EduSky
September 26, 2023 at 2:10 AM