Advancement creation

I want to create two achievements (in the future maybe more) for my first modpack, but I gave problems with both of it. The first should come when you enter the outer end, not the main island, because I don't want to overlap it with the vanilla achievement. Now I don't know how to trigger it, because I can just choose a single biome for a trigger but there are multiple biomes in the outer end. The second achievement should come when the player first gets my own created ingot, which I plan to integrate in the loot table of the end cities. But I also don't know how to trigger it, because how I didi it every item trigger didn't work.

I hope someone could help me with these two achievements.