I think this app really needs a backend so users can share/sync the tags (maybe based on the hash of a mp3 file)

Dear god, no. I don't even want to think about someone else messing up my library. I think music enthusiasts are very particular about their media and library management.

What aspects of Zoom and Teams are frustrating for you?

this may not be as useful as it appears since different requests are for different different URLs, unless you redirect a request to libcurl.com

awesome! I like the arrow keys arrangement very much. but the F1~F12 is not required. for the rotary encoder, it reminds me of another keyboard recently appeared. https://www.youtube.com/watch?v=mGShD9ZER1c but it's far more powerful.

<close> seems to be a nice feature. wish it could be ported to luajit.

Is that an issue given the course is free?

Yes. Not everyone likes to give away their personal information - especially (paradox) in exchange for access to a free resource.

Junk email accounts are helpful for this.

the big difference is that this 'Linux' is powered by gas.

I have similar ideas. At the beginning (20 years ago) I use windows notepad.exe. It has a trick that if you put “.LOG” on the top of a txt file, every time you open it with notepad, it appends current date to it. Later on I switched to Evernote, then Apple Notes.app and settled. Recently I added a service with Automator to allow me insert current date to a note. Quite convenient.

F5 inserts the current date / time in Notepad.

for the list comprehension, why not

``` do_whatever(Keys, SomeParameter) -> [case external_lookup(Key) of {ok, V} -> do_side_effecty_thing(V, SomeParameter); {error, R} -> report_some_failure(R) end || Key <- Keys], ok. ```

or

``` [begin some_func(Key), other_func(Key) end || Key <- Keys]. ```

if only the value of other_func() needs to be in the result list.

FWIW HN does not do markdown[0], let alone markdown extensions like triple-backtick code blocks.

[0] it implements a very small subset of markdown badly: emphasis (with no escape so it tends to break when you try to use multiplication signs in your comments) and indented "code" blocks

HN works fine with multiplication signs ("×"), it's asterisks that are problematic.

use 4 spaces in front of code lines instead of ```

read the title, I thought performance might be one of them. fortunately it's not. I wrote a micro service and deployed to Lambda, it seems good. the documentation is poor, but anyway we figured it out. for error handling, we didn't put a lot of effort, if there's an error, the request simply fails. since it's not a core service, the behavior is okay. btw, we're using nodejs, the developing flow is okay - with the help of serverless