The MacBook Air "13-inch Mid 2012" (A1466) takes many hours to install and download command-line developer tools and Xcode. After over a day of downloading and extracting Xcode it still didn't work. The Xcode icon appears, I got the one (12.4) that said it was compatible with 10.15.7 on the apple website, but it says the app is corrupted and has the "🚫" symbol on it.

In its current state even "git clone" fails with: "xcrun: error: invalid active developer path (/Applications/Xcode.app/Contents/Developer), missing xcrun at: /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun"

...even though before I installed Xcode, the command-line developer tools installed fine.

:edit: I confirmed that after dragging the Xcode (that had 🚫 symbol on it) app to trash and waiting quite a while, git works again.

I have to wait hours just to open Finder, then more to click Applications then more to uninstall the app and hope the command line tools will start working again.

CPU:

% sysctl -n machdep.cpu.brand_string
Intel(R) Core(TM) i5-3427U CPU @ 1.80GHz

I know this is Apple's fault due to throttling with my end-of-life battery but your program is recommended as the way to solve the problem so I wish it were a bit easier to compile. Every time I click anything in macOS it takes several minutes or hours.

I already reset the SMC and PRAM.

Many other people have the same problem of outrageous slowness due to Apple throttling when the battery is end-of-life or even disconnected completely. They were sued over gradually slowing down the iPhone as the battery got older supposedly to save battery.

Please, is there any way to compile with the command line?