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なんでそんなに慣れてんだよ！

クエン酸 kuanyui

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なんでそんなに慣れてんだよ！
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@kuanyui
kuanyui / btrfs_comparison_before_and_after_deleting_snapshot.md
Last active September 4, 2025 03:30
A simple comparison of before & after deleting snapshots via snapper in a btrfs `/` partition.

Command:

btrfs filesystem usage /

Before deleting snapshots via snapper

btrfs filesystem usage /
Overall:
    Device size:                 171.88GiB
 Device allocated: 148.07GiB
@kuanyui
kuanyui / HTML5 まぐろーだー（派生）.html
Last active November 24, 2024 14:10
MAG （画像フォーマット）ローダー（ http://emk.name/2015/03/magjs.html ）のフォーク（１-クリックしたら「元の MAG ファイルの名前」で PNG として保存できてくなります。例：`REI.MAG -> REI.png`）
<!DOCTYPE html><meta charset=utf-8>
<title>HTML5 まぐろーだー</title>
<script>
function load_mag(ab, canvas) {
var check = new Uint8Array(ab);
if ('MAKI02 ' !== String.fromCharCode.apply(null, check.subarray(0, 8))) {
throw new Error('MAG画像ではありません');
}
// ヘッダの先頭まで読み捨て
for (var headerOffset = 30; check[headerOffset]; ++headerOffset)
@kuanyui
kuanyui / Dockerfile
Last active May 15, 2024 12:31
(NOTE: Please place all the files under ./container)
# ===== USAGE =====
# clear; export BUILDAH_LAYERS=false; podman build --tag resume ./container
#
# podman run --name resume --detach --tty \
# --publish 58000:8000/tcp \
# --userns=keep-id:uid=1000,gid=1000 \
# --volume /home/${USER}/${HOST_PROJ_DIR}:/home/user/MY_PROJECT \
# localhost/resume
#
# podman exec --interactive --tty --workdir /home/user/MY_PROJECT --user user resume /bin/bash
@kuanyui
kuanyui / blockquote.md
Last active May 2, 2024 14:33

Important

Important

Note

NOTE

Warning

WARNING

@kuanyui
kuanyui / ..podman_notes.md
Last active February 21, 2024 07:44
Podman run Debian Bookworm

Beginner's note for Podman

@kuanyui
kuanyui / Dockerfile
Last active January 5, 2024 10:02
Some notes for debian inside container
FROM debian:bookworm
LABEL maintainer="[email protected]"
SHELL ["/bin/bash", "-c"]
RUN useradd --create-home --shell /bin/bash user
RUN apt update && apt install --no-install-recommends --yes \
iputils-ping \
less \
@kuanyui
kuanyui / crop-image.sh
Last active October 8, 2023 10:55
(Perl + ImageMagick) Crop image into right/left side inside bash directly.
perl -e '
use strict;
use warnings;
use File::Basename;
my $SRCDIR = "ori02/";
my $OUTDIR = "out02/";
my $w = 1506;
my $h = 2160;
my $firstPageInCenter = 1;
my $leftPageX = 405;
@kuanyui
kuanyui / tree-style-tab.css
Last active October 6, 2023 03:28
Firefox のツリー型タブ（WebExtension の TreeStyleTab）のユーザースタイルシートのため。フォントを少し小さくする。
:root.sidebar * {
font-size: 12px;
}
:root {
--favicon-size: 14px;
}
@kuanyui
kuanyui / enhanced_array.ts
Last active July 7, 2023 02:46
Use via `import './enhanced_array'`
export { }
declare global {
interface Array<T> {
last (): T | undefined
delete (elem: T): boolean
pushIfNotExist (elem: T): boolean
}
}
Array.prototype.last = function () {
@kuanyui
kuanyui / Makefile
Last active June 2, 2023 03:19
Makefile for gvm + $GOPATH + git checkout
.ONESHELL:
REPO_DIR="${PWD}"
define my_git_checkout
(git checkout $(1) || git checkout --track origin/$(1)) && git pull
endef
define GVM_USE
echo "========================================================================================="