常用导航 
随笔博客 
技术博客 
资讯博客 
百科博客 
攻略博客 
视图博客 
AI博客 
把浏览器扩展的数据同步到 GitHub：用代码仓库当云端存储
浏览器扩展的数据默认只躺在 chrome.storage.local 里，清理一次缓存、换一台电脑，就全没了。想做云备份，通常意味着自己运维一个服务，或者去注册某个第三方 BaaS。这篇拆一个更省事的做法：把 GitHub 私有仓库当云端存储，一份 JSON 快照对应仓库里的一个文件，每次上传就是一个 commit。而这个仓库不只是"某个项目的备份盘"——它是一个统一的数据存放位置，多个项目各写各…
聚合文章
汇集全部已收录博客的最新文章，点击标题前往原文阅读。
Disadvantages of APE
APE / Actually Portable Executable / Cosmopolitan Libc
WPS Android modified and stripped
wps_16.8.6_mod_balatan_kk.apk
Multi call binary for existing projects
Simpler way to build without massive patch
Cons of IronRDP today, compare to FreeRDP
In October 2025
Android bug prevents exfat readonly USB drive
Bug inside fsck handling logic
用 GDB + Python 获取 Linux 端微信本地数据库密钥
但是图片密钥还没做
Reduce memory usage of FreeCAD and OrcaSlicer
Some tricks
Disable “insecure download blocked” warning on Chrome and Edge
Avoid annoy warning, supports Chrome 145+
Block Android dex2oat on demand
For something like HSBC HK app, requires root
成立 hal-drv 组织，维护一些 Rust embedded-hal 外设驱动
持续维护，保持更新，遵循最佳实践
Tasker 永久试用修改思路
感谢 MiMo-V2.5 提供的支持
Compressibility detection in btrfs and zstd
An exploration and analysis
将HTML打包成应用程序
本期教程以最简单的方法将HTML打包为应用程序，小白看了也能学会。
用0.5b的模型AI编程
这是一期水视频，展示了使用低参数量的0.5b AI模型编写代码的效果。
[新]文件直链下载！永久有效！不限速！
告别传统网盘烦恼，真直链！免费！永久有效！
更轻巧！将你的HTML网页打包为单一exe文件
本期视频利用neoEXE工具，将你的HTML网页打包为更轻巧的单一EXE文件
67加密器
本工具通过二进制以及隐式零宽字符等方式，帮助您将任意字符串转换为67
DickSeep
本网站为一个伪AI，仅供娱乐，其中包含大量不文明用语与侮辱性语言
[谷歌翻译20次]dream还我十万美刀中字
本期视频使用谷歌翻译翻译了20次wind的经典著作《dream欠了piggod十万美刀所以他将追杀dream》
⚡云·Phira⚡
这期视频整活在手机使用巨硬的Windows App远控局域网内的电脑，实现使用手机的触控打Windows端Phira
2007年的初代安卓长啥样？
本期视频穿越回2007年，看看第一个安卓版本长什么样
使用VSCode编译与调试C++程序
本期视频将教学如何使用VSCode通过MinGW编译cpp代码
没有无线调试、没有电脑、没有root，如何启动Shizuku？
本视频通过使用另一部手机作为执行adb命令的设备，在没有无线调试、没有电脑和root的情况下启动了Shizuku
欢迎订阅CXYBBS~
建议开启RSS阅读器的“嵌入网页”“iframe”等选项，否则可能无法正常阅读专栏~
每日一言
友情链接
Traditional vs Roth IRA under fixed amount of investment
I’ve read a lot of articles on Traditional vs Roth IRA. One can do a serious mathematical analysis of which one is better, given that you want to invest a total of x income into the account for a part…
Word break with cost
Problem1 Given a set of strings W, a cost function c:W\to \R and a string s. Find elements w_1,\ldots,w_k\in W such that s=w_1\ldots w_k, and \sum_{i=1}^k c(w_i) is minimized. This problem is a genera…
Bounds on number of cuts
Consider we have an undirected graph G=(V,E) of n vertices, and there are positive cost c:E\to \R^+ on the edges. We define c(F)=\sum_{e\in F}c(e), to be the cost (value) of F\subset E. Let \mathcal{P…
Maximize Cash Back
Credit cards often offers rewards for purchases. For example, a card that gives 5% cash back for grocery stores. Also, credit cards often can be used to buy gift cards for specific stores. For example…
The value of a gift card in beancount
I’m using beancount to do accounting. In beancount, you are allowed to have commodities. One can view gift card as commodity, but also as a currency. Say, I bought an $100 Amazon gift card for $90, I…
Yotta Savings and covering designs
Yotta Savings is a FDIC insured savings account that gives you “interest” in another way. It has a 0.2% APR. It is much better than the APR of many banks, but much worse than actual high APR savings a…
Test conjectures on $k$-partitions over submodular functions
This article considers tools one can use to quickly test conjectures. I work in combinatorial optimization, and often there are cases where one can phrase a problem as a conjecture over a finite domai…
The related employer controlled group
Disclaimer: Not an accountant nor a lawyer. For employees in the US, employers (not just the employee) can contribute to the employee’s retirement fund 401(k). There is an maximum limit. It is M = \$6…
Use a box spread as a line of credit
In an idealized world, you could borrow at the Effective Federal Funds Rate (EFFR) and also earn roughly the same rate on cash deposits. For simplicity, assume the relevant short rate is fixed for a m…
AI Agents for the Working Mathematician
REVISED 2026-09-19. This is a living document. I revise it as the mathematical AI frontier changes and as experience with these systems changes what we know about using them for mathematics. The recom…
