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Show HN: TParquet – Parquet for time-series, 50% compression with Pcodec

https://github.com/aperiodic-io/tparquet

1•szemy2•10m ago

Comments

szemy2•8m ago

Hi, Daniel here: cofounder at Aperiodic. I'm posting again because it might be useful and our last post didnt get a lot of attention.

We developed TParquet for our own data processing needs (trades, quotes, order books, etc), to decrease to about half the ZSTD size while its still just parquet.

We are really curious how this could be used elsewhere (logistics? telecommunications?)

Contributions are very welcome!

Smallest possible nopert polyhedra: the Septopert

https://github.com/tom7/noperts/blob/main/septopert.md

1•RebelPotato•17s ago•0 comments

Jensen Huang's exit from Nvidia impacts China's AI supply chain

https://restofworld.org/2026/jensen-huang-nvidia-exit-china-ai-chip-impact/

1•mfiguiere•36s ago•0 comments

Spend Management: Spending limits and alerts for Cloudflare

https://blog.cloudflare.com/spend-management/

1•JackOneSG•36s ago•0 comments

When do YC interviews come out?

1•Profazia•2m ago•0 comments

What's better about Ruby than Python? (2003)

https://groups.google.com/g/comp.lang.python/c/xBWUWWWV5RE/m/gyJRB9cihAIJ

1•tosh•3m ago•0 comments

The Secret Life of Components – Tim Hunkin

https://www.timhunkin.com/a241_component-videos.htm

1•num42•4m ago•0 comments

Show HN: ChoicerVoicerHub – Zero-backend voice dubbing studio in the browser

https://choicervoicerhub.com/

1•fireflywedding•5m ago•0 comments

FAA Rolled Out New AI Traffic Tool Right Before Nationwide Ground Stop

https://www.mediaite.com/media/news/cnn-aviation-analyst-says-its-just-too-much-of-a-coincidence-...

1•u1hcw9nx•7m ago•1 comments

Show HN: A simple Solar system orbital sim that permits change of POV

https://claude.ai/artifact/4LbQeBu8pU7op1mHtCXLAu

1•joebig•8m ago•0 comments

Too Many Stadiums with Roofs

https://sharptext.net/2026/too-many-stadiums-with-roofs/

1•colinprince•10m ago•0 comments

Let Me Let You Own Your Data

https://www.willett.io/posts/data/

1•pickledish•10m ago•0 comments

SlopCodeBench: Benchmarking How Coding Agents Degrade over Long-Horizon Tasks

https://arxiv.org/abs/2603.24755

1•zdw•10m ago•0 comments

Show HN: TParquet – Parquet for time-series, 50% compression with Pcodec

https://github.com/aperiodic-io/tparquet

1•szemy2•10m ago•1 comments

Show HN: Scatter – better way to learn new things with AI

https://www.scatter.study/

1•iyonn•11m ago•0 comments

What makes an agent chat feel good?

https://ouijit.com/writing/agent-chat-feel/

1•pbjerkeseth•11m ago•0 comments

GPenSIM

https://davidrajuh.net/gpensim/

1•turtleyacht•14m ago•0 comments

Formal Verification Is Not Verifiable

https://alperenkeles.com/posts/formal-verification-is-not-verifiable/

1•zdw•14m ago•0 comments

Why rust-cache never restores on host-mode Forgejo runners

https://stokeci.dev/blog/host-mode-cache-keys

1•Aelthorim•15m ago•0 comments

Reading JSON at 277 GB/s in Python

https://lemire.me/blog/2026/11/14/reading-json-at-277-gb-s-in-python/

1•mfiguiere•15m ago•0 comments

Bufferbloat is the undesirable latency that comes from a router

https://www.bufferbloat.net/projects/bloat/wiki/Introduction/

1•Bluestein•17m ago•0 comments

Show HN: DeepSeek V3 in ~200 lines of pure Jax

https://github.com/Vaibhaav-Tiwari/deepseek-v3-jax

1•VaibhaavTiwari•18m ago•0 comments

Show HN: Mopup – clean up after builds and coding agents on macOS

https://mopup.online/developers

1•sumaniosdv•19m ago•0 comments

ML Modules for Mere Mortals

https://thunderseethe.dev/posts/ml-modules-for-mere-mortals/intro/

2•thunderseethe•19m ago•0 comments

China builds 800MW AI data center campus to rival US Stargate project

https://www.tomshardware.com/tech-industry/data-centers/china-builds-massive-800-megawatt-ai-data...

1•ivewonyoung•21m ago•0 comments

Logvinovich's IR Dichotomy in SU(N) Yang-Mills on R^4: Peano/Gribov

https://www.physicsforums.com/threads/logvinovichs-ir-dichotomy-in-su-n-yang-mills-on-r-4-peano-g...

3•wichein•25m ago•0 comments

"The Year of Linux" isn't coming

https://old.reddit.com/r/linux/comments/1xvjaa4/the_year_of_linux_isnt_coming/

2•felixding•26m ago•0 comments

Tokenizer Fairness in 2026

https://partyfly.github.io/tokenizer-fairness-2026/

2•load-bearing•27m ago•1 comments

Show HN: SrcWranglr v0.13 – A C/C++ Graphical Code Explorer for Vuln. Research

https://github.com/jdefrancesco/SrcWranglr

1•jdefr89•27m ago•0 comments

Your app already has a voice interface. It just can't hear yet.

https://keavi.app/blog/voice-permeable-interfaces/

1•jonyoder•30m ago•0 comments

HexOS Anywhere

https://docs.hexos.com/blog/2026-11-13

1•abraham•31m ago•0 comments