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Mat Schaffer

@matschaffer

Dad Software engineer (reliability, observability) Kofu, Japan matschaffer.com

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02.12.2023
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Latest posts by Mat Schaffer @matschaffer

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How Netflix optimized its petabyte-scale logging system with ClickHouse “To make our logging system work, we had to make a lot of choices. The key is how you simplify things in order to do the least amount of work.” Daniel Muino, Software Engineer

clickhouse.com/blog/netflix...

If you like high scale logging (I sure do), you’ll enjoy this post.

08.11.2025 08:48 👍 0 🔁 0 💬 0 📌 0

🕵️‍♂️ I didn’t notice this until my son pointed it out but
😳 headings that start with emoji are
🚩 becoming a warning sign for ChatGPT-generated text

18.06.2025 11:33 👍 0 🔁 0 💬 0 📌 0

Some day I’d love to hear more about apple’s cardboard packaging team. Every time I open a new laptop there are new and amazing changes in how the shipping box works.

09.05.2025 23:55 👍 0 🔁 0 💬 0 📌 0
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Trump says he's ending federal funding for NPR and PBS. They say he can't In an executive order, President Trump directs the Corporation for Public Broadcasting to stop funding NPR and PBS. They say he can't. PBS chief Paula Kerger calls it "blatantly unlawful".

www.npr.org/2025/05/02/n... - I’ve been listening to NPR shows for at least 20 years now. Took this is a cue to finally set up a monthly donation.

04.05.2025 21:32 👍 3 🔁 2 💬 1 📌 0
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Ep. #80, Augmented Coding with Kent Beck — O11ycast In episode 80 of o11ycast, Ken Rimple and Jessica Kerr chat with Kent Beck about the emerging world of AI-assisted coding. Beck shares his experiences with “augmented coding,” discussing the benefits,...

Once again @kentbeck.com nails it, this time on AI and “vibe coding” overcast.fm/+AA0GHwZa9uc

01.05.2025 00:34 👍 0 🔁 0 💬 0 📌 0
Responding to pull request feedback - Steve's Jujutsu Tutorial

Took a stroll though jj material today. Was intrigued until I saw steveklabnik.github.io/jujutsu-tuto...

Neat ideas around timeline manipulation but not feeling the collaboration story 🤔

02.03.2025 22:10 👍 0 🔁 0 💬 0 📌 0
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My tiny metroidvania Ascent is coming to Steam in glorious 64x64 pixels. It’ll be a free game so just go ahead and wishlist! 🙏 https://bit.ly/ascent_dx
#pixelart

24.02.2025 17:47 👍 120 🔁 31 💬 7 📌 1
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Apskeppet Newsletter Follow me on my game dev journey! Be the first to hear about what I'm working on, game releases, giveaways, sales, and other cool happenings from your favourite game developer Johan Peitz and the indi...

I just subscribed to Apskeppet Newsletter!

buttondown.com/apskeppet

19.02.2025 01:21 👍 0 🔁 0 💬 0 📌 0

Forgive me while I dad-gush but my oldest just came home telling me he figured out how to make a half adder from and/or/not ☺️

17.02.2025 09:13 👍 1 🔁 0 💬 0 📌 0

I’ve played the original _many_ times. Can’t wait for the deluxe version. 🧡

07.02.2025 05:05 👍 10 🔁 1 💬 0 📌 0
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🚨 NEW GAME ALERT!
My 64x64 metroidvania is getting a deluxe treatment and is coming to Steam. Twice the content, upgraded graphics and controls, more challenges, more lore, and even a save feature!

Please wishlist: https://buff.ly/3Q4sGr4 ❤️

🎵 Music and sfx by Brent Houston as always!

06.02.2025 16:27 👍 565 🔁 134 💬 21 📌 8

I get a chuckle when the App Store warns me about a 2MB download on mobile. You couldn’t even fit a Golang hello world in that.

23.01.2025 12:58 👍 2 🔁 0 💬 1 📌 0

Here we are in 2025 and swapping (non-Apple) Bluetooth headphones between devices is still terrible.

04.01.2025 03:01 👍 1 🔁 0 💬 0 📌 0

check this man´s games (and software), they are very cool yo.

20.12.2024 19:50 👍 6 🔁 3 💬 1 📌 0

Doing some nextjs work this week.

Trying really hard not to feel like an old man shaking his fist, but seriously: who decided to make adding header content (link, meta, etc) so complicated?!?!

I feel sorry for the children.

17.12.2024 16:51 👍 2 🔁 0 💬 0 📌 0
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The truth costs money. Free information isn’t free; the cost is hidden.

Wooooo. Hell of a mic drop from @thoughtmerchants.bsky.social today

www.thoughtmerchants.com/opinion/the-...

09.12.2024 23:26 👍 3 🔁 4 💬 0 📌 0

Great space!!! 🧡

03.12.2024 23:02 👍 0 🔁 0 💬 0 📌 0
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picoCAD launches on Steam tomorrow. Marketing has gone way better than expected so I'm both nervous and excited.

Want to pitch in a wishlist during the last hours?
✨ bit.ly/picoCAD
Shares are highly appreciated!

Here's Kaneda's bike by @bencanfield.itch.io

#gamedev #lowpoly #wishlistWednesday

27.11.2024 14:28 👍 268 🔁 57 💬 7 📌 3

Does anyone watch for OOMs in their #k8s clusters? I do and am a little surprised how often default OSS project containers OOM. Not sure anyone is setting their Golang memory settings at all.

23.11.2024 07:39 👍 1 🔁 0 💬 0 📌 0
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picoCAD on Steam A tiny modeler for tiny models! Unleash your creativity in retro 3D and find a fun, easy, and accessible way into 3D modelling by focusing on the bare essentials.

I’d like to highlight my first Bluesky follow @johanpeitz.com - he’s a fantastic game developer. Be sure to check out (and wishlist) store.steampowered.com/app/2800590/...

21.11.2024 08:51 👍 26 🔁 2 💬 1 📌 0

Seems like a lot of Japan is still on the other site. Thinking maybe I’ll make that Japanese only and this will be English.

20.11.2024 11:41 👍 0 🔁 0 💬 0 📌 0

First post

18.11.2024 22:40 👍 5 🔁 1 💬 0 📌 0