Everything that has a beginning has an end.

From now on, this blog will have no more updates.

After three and a half months work, I finally resigned so that I can have some break. Reviewing this period, I found it boring and plain for the most of the time. Although occasionally eating outside or having a voice call online with friends, I spent the rest of my time alone, wondering if this is how life would be in the following 10 or 20 years, or would it last to the final end?

One of my friend on Facebook recommended a comedy anime, KonoSuba (この素晴らしい世界に祝福を！), to me. And it indeed is an amazing comedy. But meanwhile, I somehow felt more depressed.

The main character, Satou Kazuma, was a neet and otaku, dead less than 80 seconds in the anime, thus he entered a different world (isekai, 異世界) beginning his adventure journey mainly with other 3 girls. They became really good friends and Kazuma fell in love with Megumin afterwards.

There are also some other anime featuring afterworlds as its story's background, such as Angel Beats and Zombie Land Saga. And I think the main characters in these stories share something in common: they didn't have a happy nor even normal life when they were alive, or encountered unexpected accidents and had some pities when they passed away. But the most attractive thing for me is that, they have a better life with great friends in isekai. They can hangout with friends and meet up each other on a daily basis, in contrast with the highly likely lonely life in my next many years.

So in my perspective, it can't be more wonderful if such isekai exists. Yet knowing that they are all fiction worlds makes me feel depressed in someway. And in reality, if one passes away, then they physically no longer exists. Even if there is something like reincarnation, one cannot possibly remember anything from their former life. (What about cyborg? That can be an entirely different topic though. I once wrote some of my thought about it. I, self, mind, immortality and death)

这两天 Arduino 出了一个新的小型嵌入式开发板，Portenta H7 https://store.arduino.cc/usa/portenta-h7

性能上的话，CPU 是一个 Cortex M7@480MHz + Cortex M4@240MHz ，两个核心用 RPC 机制通信，可以跑 MicroPython / JavaScript，还有 TensorFlow Lite

个人觉得亮点 1) 是有双频 Wi-Fi（虽然最大速率只有 65Mbps），可以当成 AP / STA，这样一来的话，2.4GHz 和 5GHz 的 Wi-Fi 抓包和嗅探应该是可以了。

亮点 2) 的话就是终于可以直接用 Type C 了，并且还支持 DisplayPort。

最后亮点 3) 就是 Portenta 系列会有 2 个 80 pin 的高密度连接口，扩展性似乎比以前我用过的 Arduino 系的板子的好不少。

不过 $99 的基础款只有 2MB 内存，16MB 的 NOR Flash 存储空间。官网上倒是说最大可以配置 64 MB 的内存和 128 MB 的 QSPI Flash，不过并没有给价格。

就算是这样，99 美元也蛮贵的了，完全可以买一个 Raspberry Pi 4 Model B 4GB 版了，当然，tradeoff 就是 Raspberry Pi 相对而言没有这么小。这个怎么选就看使用场景了

略有一点点种草，要是什么时候有闲钱和时间倒是想试试看这个

啊，这篇 post 大概是个笔记～

其实很久之前就想把放大缩小图片的功能加到博客上来的，然而一直以来都在摸鱼，前段时间帮玲做了一个摄影的的博客，于是就正好找找看有没有合适又好用的 JS 项目

在一番搜索和试用 Demo 之后，只有 https://github.com/francoischalifour/medium-zoom 最符合需求，同时使用起来非常便利，几行代码就可以给博客加上图片放大缩小的功能

Currently, I'm writing my notes of Rust learning, and it usually comes with many screenshots even in a single post. Though PNG file could serve the original / or best quality, the size of which is considerably large. So it takes a few seconds to load despite using Cloudflare CDN.

WebP has been released years ago by Google, and I'd considered that before. However, in the early days, it only works in Google Chrome. Lacking support in other mainstream browsers was a main barrier for me to adopt it.

And now many browsers support WebP image, and WebP format has also been updated in these years. It could serve nearly the original quality but half or even sometimes less than one third the size of corresponding PNG file.

Yet it's surprised to me that Safari hasn't adopted WebP format, which means I have to provide a fallback. Well then, given that I'm also planning to speed up page load by deferring images, the extra thing would be checking WebP support.