Notes

Ask from the coordinator: To break it down further, a potential format for the 1-hour session could be something like: - Introduction to yourself, your career journey, and your role at AWS - A potential case study or work example, exemplifying how you utilize your skills at work - Job search tips for when they eventually begin applying - Q&A Portion Flow: Intro: Major stages of my career and some of my mistakes along the way so that you can avoid those in your career. Adobe and Snapdeal: Adobe Story and e-commerce website: distributed systems and some frontend work. Excited about technology but didn’t know expectations in a corporate environment. They don’t teach you this in college. Tip 1: Ask for feedback from well-intentioned peers. Amazon: 10+ years now. Won’t bore you with all the teams I’ve been part of, so just the interesting ones. Lambda: I joined because I was excited about the potential of serverless. However, a very new field for me and I struggled. VM ballooning. Tip 2: How to make learning durable? Code yourself. Even if you are following a tutorial, rewrite on your own. Anki. Lookout for Metrics: Intentionality == “know what you’ll get out of a certain project”. I work in SageMaker. About SageMaker. I-ML org: we provide cloud based IDEs - JupyterLab or VS Code - for ML. Example of my work: Cosmos. Tip 3: Work backwards from customers, not a solution == solution should follow the problem, not the other way around.

Fairy lights: Red is load, middle is data and the third wire is ground. For power, red is again load and the other is ground. Regular LED strip lights: They mention +ve, ground and data on the strip itself. Make sure data direction is correct while wiring up. In long runs, you need to inject power in between connections because of voltage drop. Even if power supply can provide enough amperage, you may need injection, possibly using the same supply.

An example use case is to pass hard drives to Open Media Vault so that it can club them together behind MergerFS. Helpful commands: # Commands to find the right disk ID. lsblk -o +MODEL,SERIAL,WWN ls -l /dev/disk/by-id | grep -i sdb find /dev/disk/by-id/ -type l|xargs -I{} ls -l {}|grep -v -E '[0-9]$' |sort -k11|cut -d' ' -f9,10,11,12 # Then, pass through. # Here, use the right number for `-scsiN`. Once the following is run, the disk will show up in Proxmox GUI too, under the VM's "Hardware" section. qm set 103 -scsi1 /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDHBBLLT Helpful resources: ...

Don’t want “string lights”. How to control via HAOS? WS2812B. Nice brands: ALITOVE or BT-Lighting. (The latter is available on Ali Express too.) Might need multiple power supplies depending on the length of the lights. Lights usually take DC and will dictate output voltage of the adapter you need to buy. 0.02 amps per LED is safe. (Max requirement is thrice that.) Power adapter should obviously support a higher number. 30 LEDs per meter: 150 LEDs * 0.02 == 3 amps total. 60 per meter -> 300 LEDs -> 6 amps total. Alitove good brand. Calculator: https://wled-calculator.github.io/ WLED controller. Check Athom WLED controller. List of tools: https://quinled.info/2018/10/01/tools-and-equipment/ Diffusers: Muzata is a good brand. Logic level shifting: https://electricfiredesign.com/2021/03/12/logic-level-shifters-for-driving-led-strips/

In the past, when I tried applying some DS record(s) to nic.eu.org, it sometimes complained that they were invalid. To remedy that, I had to format those similar to the following. Specifically, the first 4 fields were missing when it complained. ketanvijayvargiya.com. 3600 IN DS 2371 13 2 64_CHARACTER_LONG_STRING

Kiddo’s third birthday Yesterday was such a great day for me. It was kiddo’s third birthday and I had a lot of fun with him. He too said the same and that made me even happier! In the morning, I was hanging out with him while his mother prepared a little surprise for him - with cake and balloons - in his room. In the evening, I got him a giant “happy birthday” balloon and he was genuinely happy playing with it. For Diwali, we lighted up a few sparklers - his first, wore traditional kurta-pajama, ate chole-puri for dinner and read a book called “How to cheer up dad” which we recently got from the local library. ...

One option is to buy a silicon diffuser with regular strip lights. For example https://www.amazon.com/gp/product/B0B2WMM5WN https://www.amazon.com/Muzata-Silicone-Spotless-Flexible-Enclosed/dp/B08QM6YK7X or https://www.amazon.com/Muzata-Silicone-Channel-Flexible-Enclosed/dp/B0B4FQCB6D Could I use a Shelly RGB with this? Govee’s 1m lights are just $70 though.

Dallas: Proper map: http://xjubier.free.fr/en/site_pages/solar_eclipses/xSE_GoogleMap3.php?Ecl=+20240408&Acc=2&Umb=1&Lmt=1&Mag=0&Lat=32.77642&Lng=-96.79661&Zoom=8&MapT=%27TERRAIN%27 Flights: Resources: https://eclipse2024.org/eclipse_cities/total/tx

I’ve thought this before but still: it’s time for me to move out of Amazon. Why? The current 3x-per-week RTO policy is sucking out time from my life and there are strong rumors that the number will bump up to 5x-per-week. That will be worse. My work in the last month, after getting promoted to PE, hasn’t been fun. I’ve been advising teams on a few different initiatives, and that’s good, but I am not solving complex problems on my own. Partially out of lack of motivation and/or wastage of time while commuting, I am not able to find time to write code or be hands on in other ways. That’s not good. There is a lot of bureaucracy in the company but that’s also kind of covered in the previous point. Things don’t move fast enough. My next ideal company would likely have 2 elements: small enough so that it isn’t too bureaucratic and will allow me to be hands-on. I was also thinking that we take a goal of moving out of US to Europe after X years from now. Wife seemed onboard but we are concerned about 1 thing: lack of friends and social circle. I take it as a given that we won’t be able to make new friends in a new place when we are forty (or even at our current age for that matter). So, will we be okay with that? (As of today, the answer seems “no”.)

Self hosting: I had setup a certificate authority called Step CA on my home server because ai thought it’d be cool. It mostly worked but not reliably all the time. So, I finally ditched it and I am now in the process of replacing it with regular Let’s Encrypt certificates. It’ll also simplify things a bit because we won’t need to install our custom root certificate on every device. I was worried that my sub-domains will appear on the public certificate log and, for instance, I don’t necessarily want the world to know I use the Arr suite of software. So, I used wildcard certificates to protect against those. I am still not sure why the earlier setup didn’t work well for me because I was mostly doing standard stuff on Traefik. The underlying problem was that I had 2 certificate resolvers - Step CA and Let’s Encrypt - and Traefik fell back to the wrong one in some cases. But why, I still don’t know. I am also putting together a new home page which can be configured through code instead of the UI. Yesterday, I thought of setting up Mastodon because why not and because I have RAM to spare. But then I thought no one will anyway read whatever I post there, so why not keep it simple and just write once in awhile here in my personal notes? RTO, i.e. return to office, is tiring. Today, I had to take shuttle back home instead of the vanpool and the ride took a full 90 minutes plus 15-25 mins to/from shuttle. That’s a lot.