noreply@blogger.com (fuyichin)Thu, 23 Oct 2025 14:22:00 +0800Blogger http://www.blogger.com719125http://fuyichin.blogspot.com/en-usnofuyichin software development java solaris linux opensourcefuyichin blogfuyichin blogfuyichinfuyichin@yahoo.comfuyichinhttp://fuyichin.blogspot.com/2025/10/is-macos-26-vista-moment.htmlThu, 23 Oct 2025 14:22:00 +0800tag:blogger.com,1999:blog-8321558.post-1549276022502033462 macOS 26 Tahoe, version number changed from 16 to 26 to indicate the year 2026(?). There are quite a number of criticisms about the new macOS with Liquid Glass display. Try hard macOS 26, Windows Vista Moment, the title says it all. From this graph, some users seem to revert back to version 15.7 from version 26. Better don't spend too much time on this. 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/10/qualcomm-bought-over-arduino.htmlThu, 16 Oct 2025 15:44:00 +0800tag:blogger.com,1999:blog-8321558.post-8158439096091831730 Most people, especially those old school electronic guys/gals think that Arduino is just for hobbyists. They are not wrong but Arduino can do more than that. When I talk to some people, they tell me that cost of the microprocessor is nothing important compare with the development cost. In that case, Arduino is not just for hobbyists, it can prototype product quickly. Qualcomm bought 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/09/docker-cheatsheet-2025.htmlWed, 24 Sep 2025 22:30:00 +0800tag:blogger.com,1999:blog-8321558.post-1853730726078762869Docker cheatsheet 2025 Test with hello-world $ docker run hello-world $ ps -A | grep dockerd => dockerd Run or download $ docker run busybox echo "hello world" $ docker run -it busybox echo /bin/sh # -p <host>:<container> portmap eg. -p 8080:8080 # -v, map volume Container and image # check container $ docker container ps -a $ docker stop <container id> # 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/09/received-raspberry-pi-pico-2w.htmlWed, 17 Sep 2025 21:59:00 +0800tag:blogger.com,1999:blog-8321558.post-6464638371132118882Received the Raspberry Pi Pico 2W I just received the Raspberry Pi Pico 2 this morning, after a long weekend. I was occupied today and unable to test it after I received it. The Raspberry Pi Pico is small, slightly smaller that what I was expecting. It suppose to be easy to install with Micropython. Plug in the power/USB with Bootsel button pressed, the Pico will appeared as an USB drive, 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/09/docker-tutorial-2025-part-1.htmlWed, 10 Sep 2025 19:41:00 +0800tag:blogger.com,1999:blog-8321558.post-5207236028901799864Docker Tutorial 2025 Part 1 This is a quick and dirty tutorial for Docker What is docker? Docker is a container, a lightweight vm to run linux os environment. It use lesser (much lesser) resource than Virtualbox. Docker can be used for development and production, it provide consistant environment, and more secure. Docker can run on Linux, macOS (Docker Desktop) and Windows (WSL2). 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/09/lets-try-jvm-pico.htmlWed, 3 Sep 2025 14:31:00 +0800tag:blogger.com,1999:blog-8321558.post-8721706810202080211Let's try jvm-pico Basically J2ME/PhoneMe is dead, like J2EE, but worst. Just sharing, because I am a strong supporter of Java... Yesterday I found a J2ME vm which can run on Raspberry Pi Pico (a very small microcontroller). This guy name Oren Sokoler, I think just he himself alone ported the PhoneMe to Pico, name pico-jvm (https://github.com/orenskl/pico-jvm), not completed, but seems like 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/08/opensolaris-on-container.htmlThu, 28 Aug 2025 11:35:00 +0800tag:blogger.com,1999:blog-8321558.post-7142029581214161093OpenSolaris on container Just my immagination, may be in the future. Docker can run Opensolaris, Darwin and Windows container. So far the most stable is still Linux. No luck in getting Darwin or OpenSolaris running on VM, Qemu or virtualbox. The one which is working is ReactOS (Windows NT). Since docker works with colima + Qemu, in future may be can use Colima to choose Darwin, 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2025/08/linux-brew-on-chrome-os-flex-2025.htmlWed, 20 Aug 2025 13:38:00 +0800tag:blogger.com,1999:blog-8321558.post-3040879464544972023Linux Brew On Chrome OS Flex 2025 I like homebrew so much, that I try it out immediately when I knew about it. At that time, Linux brew is not so matured, I encounter a lot of issues, I didn't know much about ruby program, so I give up. Now Linux brew is quite matured. It install on Linux without much problem. There was one time, I was in doubt, why do I need a Linux brew. My Linux can 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/09/debian-127-release.htmlandroidlinuxThu, 5 Sep 2024 09:56:00 +0800tag:blogger.com,1999:blog-8321558.post-908802124372343060Debian 12.7 Release New release of Debian 12.7 at the end of August 2024. It says there are some security improvement. Do I need to reinstall to upgrade? No, just update will do. Do I need to dist-upgrade? No, just update will do. You can use apt-get, aptitude or nala or any other debian software package manager. eg. $ sudo apt update && sudo apt upgrade Check your 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/08/how-to-enable-secure2u-in-maybank-mae.htmltipsThu, 29 Aug 2024 09:46:00 +0800tag:blogger.com,1999:blog-8321558.post-533179702759569755How to enable secure2u in Maybank MAE mobile App Maybank has 2 mobile app The older Maybank2u app and newer MAE. MAE has eWallet and some other features. Old Maybank2u app will be retired. What is Secure2u? Secure2u is the security feature to replace the 6 digits OTP (One Time Password) from SMS. It send notification through the app, and approve with the Maybank2u app or MAE app. 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/08/adb-enable-drawing-over-other-apps.htmlandroidfireosThu, 22 Aug 2024 16:07:00 +0800tag:blogger.com,1999:blog-8321558.post-2941132751645608473ADB Enable "Drawing over other apps" I use ADB for these few things for now: 1. transfer file $ adb pull /sdcard/Pictures/screenshot1.png . # download a picture from Android device to local $ adb push screenshot2.jpg /sdcard/Pictures/. # upload to Android device 2. install apk app $ adb install examples.apk # install apk app from local to the Android device 3. screen capture / 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/08/why-i-use-debian-linux.htmllinuxThu, 15 Aug 2024 15:49:00 +0800tag:blogger.com,1999:blog-8321558.post-1093083501880322848Why I use Debian Linux There are so many Linux distributions, you can choose the one which suits you most. I have tried so many Linux distributions before, from Red Hat to Ubuntu. Finally I settled down with Debian. Ubuntu is based on Debian, Raspberry Pi Desktop is based on Debian, the Chrome OS Linux VM is a Debian. I am already getting used to Debian. Debian has a lot of 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/08/i-have-lost-track-with-arduino.htmlarduinoThu, 8 Aug 2024 07:02:00 +0800tag:blogger.com,1999:blog-8321558.post-4876498996491570324I Have Lost Track With Arduino My friend bought a ESP32 microcontroller board for MYR10 from Shopee. ESP32 microcontroller is a dirt cheap controller from the Shanghai company Espressif. Users choose ESP32 for its low price, good support (especially software) and with Wifi (and bluetooth). There are many versions of ESP32, like C3, C6 etc. The one that I am most interested in is 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/08/connect-alexa-echo-as-external-speaker.htmlasrocke5200tutorialThu, 1 Aug 2024 08:23:00 +0800tag:blogger.com,1999:blog-8321558.post-6716397887853163424Connect Alexa Echo As External Speaker From Linux LXDE I have this old E5200 Petium Duo Core machine, installed with Raspberry Pi Desktop. This machine doesn't came with bluetooth, so I just bought a cheap bluetooth dongle (Essanger bluetooth 5.1), which I don't even know will work or not, luckily it works. These are the simple steps to connect the Alexa Echo as an external speaker through0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/jtke-lte-4g-usb-modem-simple-review.htmlreviewtipsThu, 25 Jul 2024 10:13:00 +0800tag:blogger.com,1999:blog-8321558.post-4130041286866949272JTKE LTE 4G USB Modem Simple Review I am using my phone as an Internet modem, and it is overheating. So I took out the JTKE LTE 4G USB modem to connect to the Internet. I bought this modem at quite a cheap price, yes it does not have 5G, maybe that is the reason it is cheap. This is not just a modem, it can be a wifi router as well. It uses the normal SIM card, not the nano or micro 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/is-it-good-time-to-use-alternative-than.htmlspecialeditionTue, 23 Jul 2024 16:19:00 +0800tag:blogger.com,1999:blog-8321558.post-6704749093162236904Is it a Good Time To Use an Alternative Than Windows Solution? CrowdStrike impact As a software developer, I always meet people who only use Microsoft Windows solutions, even though Windows is not stable to work as a server (their solution is to reboot 1-2 times every week). Still these people choose Windows as their software solution, for 2 reasons, 1. They only know Windows. 2. An IT 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/a-quick-solution-to-microsoft-bsod.htmlspecialeditionFri, 19 Jul 2024 23:19:00 +0800tag:blogger.com,1999:blog-8321558.post-6423677063982012885A Quick Solution To Microsoft BSOD Today (CrowdStrike) 1. Boot Windows in safe mode. 2. del C:\Windows\System32\drivers\CrowdStrike\C-00000291*.sys 3. reboot 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/qemu-with-command-line.htmltipsThu, 18 Jul 2024 15:42:00 +0800tag:blogger.com,1999:blog-8321558.post-6993255106690073624 QEMU with command line Introduction QEMU is Quick emulator. This tutorial works on Qemu 9.0.1. Installation Debian: $ apt install qemu Homebrew: $ brew install qemu Linuxbrew: $ brew install qemu Using qemu Create image: $ qemu-img create -f qcow2 alpine_disk.qcow2 12G $ ls alpine_disk.qcow2 ⇒ only created a 192k image file, even though it was stated to be 12G. The file will grow 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/easy-install-docker-on-debian-64-bit.htmllinuxmacOStutorialThu, 11 Jul 2024 08:53:00 +0800tag:blogger.com,1999:blog-8321558.post-8209585079647125498Easy Install Docker On Debian 64 bit This is using command line. Easy way (Debian) I found an easy way to install Docker on Debian 64 bit (arm64 and amd64). I just tested on Debian 12 Bookworm, didn't try on Arm platform. If you fail, may be Docker didn't provide the binary of your platform, for example Debian 32 bit. $ apt update $ apt upgrade ## need curl and apt-utils $ curl -fsSL 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/07/unix-compress-tips-gz-xz-etc.htmltipsunixThu, 4 Jul 2024 11:31:00 +0800tag:blogger.com,1999:blog-8321558.post-695529142781336193Unix Compress Tips (gz xz etc) Another incomplete jumpstart tutorial or tips for unix compression. There are a few types of unix compress format eg. gz, bz2, what are the differences? Z is very old unix compress, probable no one is using it now. The gz and bz2 (bzip2) is quite common for compressing text base file, eg. source code. The gz and bz2 format existed and commonly use for a long 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/06/is-intel-n100-mini-pc-good-buy.htmlThu, 27 Jun 2024 08:00:00 +0800tag:blogger.com,1999:blog-8321558.post-3779238907629893548Is Intel N100 mini PC a good buy? It depends on what you want to do with it. It should be good for general usage, but not for gaming. The Intel N100 CPU was released 2023 January. It is using Alder Lake-N, base on Alder Lake but with some modification. The Alder Lake family (aka Intel 7) is one of the latest architecture. The Alder Lake-N is the ultra low power consumption CPU, eg. N100 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2024/06/docker-is-good-for.htmllinuxFri, 21 Jun 2024 17:06:00 +0800tag:blogger.com,1999:blog-8321558.post-716690887462316749Docker is good for testing and production Docker is a lightweight container, is small, fast and secure. Docker is easy to use (should be easy to setup as well). Docker is good for testing and deploying. For sample, you want to test your application on Red Hat Linux. You don't want to install another machine, so your test it on Docker. For sure I prefer to test it on Alpine than Red Hat.0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2023/12/wish-everyone-happy-new-year-2024.htmlSun, 31 Dec 2023 22:51:00 +0800tag:blogger.com,1999:blog-8321558.post-6688425274551639467Wish Everyone Happy New Year 2024 Happy New Year 2024!! 0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2023/12/a-small-issue-to-compile-usb-notify.htmltipsThu, 28 Dec 2023 20:02:00 +0800tag:blogger.com,1999:blog-8321558.post-808519402175431029A Small Issue To Compile Usb-notify Program 2023 undefined reference to notify_notification_new I like the usb-notify program a lot. This small little program displays a notification on the Linux desktop when a USB device is plugged in. To compile I need libnotify-dev, libudev-dev package. $ git clone https://github.com/wcampbell0x2a/usb-notify $ cd usb-notify $ make0fuyichin@yahoo.com (fuyichin)http://fuyichin.blogspot.com/2023/12/how-to-apply-rm100-government-ewallet.htmltipsMon, 4 Dec 2023 22:10:00 +0800tag:blogger.com,1999:blog-8321558.post-5977758272743632268How To Apply RM100 Government eWallet Incentive 2023 Malaysia government give RM100 incentive for those those who is eligible. The RM100 can be applied through the following eWallet, Touch'n Go eWallet, MAE (Maybank), Shopee Pay, SETEL (Petronas?). Applying period is from 2023 5 December to 2024 20 February. This RM100 can only be spent on merchants, not transferable or paying bills. MAE MAE 0fuyichin@yahoo.com (fuyichin)