I would install Obtainium or Zap.store and install Amber, Citrine and Pokey through there. Here's direct links though:

Amber: https://github.com/greenart7c3/Amber/releases/

Citrine: https://github.com/greenart7c3/Citrine/releases/

Pokey: https://github.com/KoalaSat/pokey/releases/

Here's a brief note I wrote about using Citrine
nostr:nevent1qqsyevrsllqahu3rphfg4t7lm2qt2r8vgpuvyg7qzgmslqqczuj50pqpz9mhxue69uhkummnw3ezuamfdejj7q3q8ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqxpqqqqqqzvmdqv6