I thought the Rust of update logs was good.

kohei “koheyy123” uechi — Tue, 28 Oct 2025 07:35:46 +0000

Last login: Tue Oct 28 08:06:40 on ttys015

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k-uechi3:~ k-uechi$ ls
adminpack-cli   direnv      Library     Pictures
Applications    Documents   Movies      Public
Desktop     Downloads   Music       workspace
k-uechi3:~ k-uechi$  cd workspace/
k-uechi3:workspace k-uechi$ ls
CLAUDE.md   iretsoumu   setup       task        uedev
k-uechi3:workspace k-uechi$ cd uedev/
k-uechi3:uedev k-uechi$ ls
hello_lambda        lev         spot-diggz
hello-world     LLMs            test-ui
hello-zig       LLMs-from-scratch   utils
IssueFlow       ops-toolkit
k-uechi3:uedev k-uechi$ rustc --version
rustc 1.85.0 (4d91de4e4 2025-02-17)
k-uechi3:uedev k-uechi$ echo $PATH
/Users/k-uechi/.rd/bin:/Users/k-uechi/.local/bin:/Users/k-uechi/.asdf/installs/nodejs/24.2.0/bin:/Users/k-uechi/.codeium/windsurf/bin:/Users/k-uechi/.cargo/bin:/Users/k-uechi/.asdf/shims:/Users/k-uechi/.asdf/shims:/opt/homebrew/opt/asdf/libexec/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Applications/iTerm.app/Contents/Resources/utilities
k-uechi3:uedev k-uechi$ rustup update
info: syncing channel updates for 'stable-aarch64-apple-darwin'
926.7 KiB / 926.7 KiB (100 %) 926.7 KiB/s in  1s
info: latest update on 2025-09-18, rust version 1.90.0 (1159e78c4 2025-09-14)
info: downloading component 'rust-src'
  3.3 MiB /   3.3 MiB (100 %) 943.4 KiB/s in  3s
info: downloading component 'rust-std' for 'aarch64-unknown-linux-gnu'
 29.1 MiB /  29.1 MiB (100 %)   1.2 MiB/s in 22s
info: downloading component 'cargo'
  8.1 MiB /   8.1 MiB (100 %)   1.5 MiB/s in  6s
info: downloading component 'clippy'
  2.7 MiB /   2.7 MiB (100 %) 826.2 KiB/s in  3s
info: downloading component 'rust-docs'
 20.5 MiB /  20.5 MiB (100 %) 937.6 KiB/s in 19s
info: downloading component 'rust-std'
 27.7 MiB /  27.7 MiB (100 %)   1.5 MiB/s in 20s
info: downloading component 'rustc'
 60.8 MiB /  60.8 MiB (100 %)   1.1 MiB/s in 58s
info: downloading component 'rustfmt'
info: removing previous version of component 'rust-src'
info: removing previous version of component 'rust-std' for 'aarch64-unknown-linux-gnu'
info: removing previous version of component 'cargo'
info: removing previous version of component 'clippy'
info: removing previous version of component 'rust-docs'
info: removing previous version of component 'rust-std'
info: removing previous version of component 'rustc'
info: removing previous version of component 'rustfmt'
info: installing component 'rust-src'
info: installing component 'rust-std' for 'aarch64-unknown-linux-gnu'
 29.1 MiB /  29.1 MiB (100 %)  22.9 MiB/s in  4s
info: installing component 'cargo'
info: installing component 'clippy'
info: installing component 'rust-docs'
 20.5 MiB /  20.5 MiB (100 %)   1.6 MiB/s in 25s
info: installing component 'rust-std'
 27.7 MiB /  27.7 MiB (100 %)  22.9 MiB/s in  1s
info: installing component 'rustc'
 60.8 MiB /  60.8 MiB (100 %)  24.1 MiB/s in  2s
info: installing component 'rustfmt'
info: checking for self-update
info: downloading self-update

  stable-aarch64-apple-darwin updated - rustc 1.90.0 (1159e78c4 2025-09-14) (from rustc 1.85.0 (4d91de4e4 2025-02-17))

info: cleaning up downloads & tmp directories
k-uechi3:uedev k-uechi$

You can check it out S3-bucket-size anytime.

kohei “koheyy123” uechi — Fri, 24 Oct 2025 05:58:33 +0000

What is this?

You can check it out S3-bucket-size anytime.

Usage

https://github.com/uechikohei/S3-Bucket-Size-Analyzer

Explain for OSS tool

todo

I'm about to write some crappy articles.

kohei “koheyy123” uechi — Thu, 23 Oct 2025 23:45:19 +0000

I'm software engineer in Japan, but writing in Japanese feels like being watched all the time.

People on X(Twitter) always have something to say - it"s annoying and exhausting.

I don't get why pointing out what's wrong with a vendor or a service in such a big deal.

The whole community vibe just feels toxic sometimes.

So, I decided to start writing in English instead - less noise, more motivation.

That" all, Nice to meet you, I guess.

From Python to Zig: My Journey into Low-Level Programming

kohei “koheyy123” uechi — Sat, 08 Feb 2025 07:02:57 +0000

background

I`ve benn working with Python for a couple of yeas..

I felt that learning a low-lovel language would challenge me and help me understand the underlying mechanics of programming better.

Motivation & Process

todo

overview

Unlike Python, Zig requires explict memory management and gives you more control over hardware.

Hello world

todo

DEV Community: kohei “koheyy123” uechi

I thought the Rust of update logs was good.

You can check it out S3-bucket-size anytime.

What is this?

Usage

Explain for OSS tool

I'm about to write some crappy articles.

From Python to Zig: My Journey into Low-Level Programming

background

Motivation & Process

overview

Hello world