None of the spells from 2014 expanded rules are added to the new 2024 Artificer class. Spells like Booming blade, Green-flame blade, and absorb elements are missing. From what I understand, these spells ARE supposed to be there because of the promise to have all 2024 classes being backwards compatible with 2014 content. So any spell in 2014 content that has the Artificer tag stoll needs to be added to the class spell list.

Also, some feats are not able to be chosen. One of these is War Caster, which requires spellcasting to take the feat.

Cmon guys... I can do a better job with the Homebrew system on your own website.

It seems like that they are missing a tag 

under unavailable Feats you can find it and it says missing Missing: Rogue (Legacy) - Arcane Trickster (Legacy) - Level 03: Spellcasting or Rogue - Arcane Trickster - Level 03: Spellcasting or Artificer (Legacy) - Level 01: Spellcasting or Bard (Legacy) - Level 01: Spellcasting or Bard - Level 01: Spellcasting or Cleric - Level 01: Spellcasting or Cleric (Legacy) - Level 01: Spellcasting or Druid (Legacy) - Level 01: Spellcasting or Druid - Level 01: Spellcasting or Fighter (Legacy) - Eldritch Knight (Legacy) - Level 03: Spellcasting or Fighter - Eldritch Knight - Level 03: Spellcasting or Paladin (Legacy) - Level 02: Spellcasting or Paladin - Level 01: Spellcasting or Ranger - Level 01: Spellcasting or Ranger (Legacy) - Level 02: Spellcasting or Sorcerer - Level 01: Spellcasting or Sorcerer (Legacy) - Level 01: Spellcasting or Wizard - Level 01: Spellcasting or Wizard (Legacy) - Level 01: Spellcasting or Blood Hunter - Order of the Profane Soul (INT) - Level 03: Pact Magic or Blood Hunter - Order of the Profane Soul (WIS) - Level 03: Pact Magic or Warlock (Legacy) - Level 01: Pact Magic or Warlock - Level 01: Pact Magic or Illrigger - Architect of Ruin - Level 03: Spellcasting or Blood Hunter - Order of the Profane Soul - Level 03: Pact Magic or Monster Hunter - Occultist Guild - Level 03: Spellcasting so it need to be added to that list

Edit temp solution take the 2014 version of warcaster and add + 1 to int, cha or wis.

I can do a better job with the Homebrew system on your own website.

Pretty much what I ended up doing to fix some of these missing things that have been staples for using Artificer.