Drupal add 3 categories & the first categorie would have 7 subcategories

I am trying to create an education website. As I have mentioned in the title, my requirements are to add 3 main categories, the first category has 7 subcategories, each subcategory has 6 subcategories. Ex: Main category: Courses 7 Subcategories (english, french, math, physics, etc… 7 subcategory for each subcategory ex for english (grammar, comprehension…

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CRIU check shows warning in Raspberry-Pi-4(4gb version) on ubuntu server platform

Warn (criu/cr-check.c:680): Dirty tracking is OFF. Memory snapshot will not work. Warn (criu/cr-check.c:1061): Do not have API to map vDSO – will use mremap() to restore vDSO Warn (criu/cr-check.c:1029): CRIU built without CONFIG_COMPAT – can’t C/R ia32 Looks good but some kernel features are missing which, depending on your process tree, may cause dump or…

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Nixos configuration use pinned nixpkgs for specific package

So my nixos-rebuild fails to build due to the recent error of: https://github.com/NixOS/nixpkgs/issues/74916 I thought I’d give a go at trying to fix this, by referencing a previous commit’s package I added the following in my config (under one of the let statements): nixpkgsMyStable = import (builtins.fetchTarball { url = https://github.com/NixOS/nixpkgs/archive/775fb69ed73e7cf6b7d3dd9853a60f40e8efc340.tar.gz; sha256 = “1w068b0ydw4c26mcjiwlzdfqcdk3rrwmfx4hxzgfhfwcz2nmh3if”; })…

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