react-native-mmkv VS react-native-reanimated

react-native-mmkv is a wrapper around MMKV that allows you to easily implement secure storage in your app. It is arguably the fastest key-value storage for React Native apps

Why do you need to access the db from the file system? Can you just use something like https://github.com/mrousavy/react-native-mmkv ?

By using libraries like Reanimated, React Native MMKV, and React Native Skia, you leverage the native thread. However, I know there are developers building amazing things who think outside the box. I'm always thrilled when I read engineering blogs from companies like Netflix, Meta, and Shopify. They create solutions beyond the limits.

mmkv is not really designed to be used for “heavy” writes, or often changing values. But more as e.g. NSUserDefaults. The storage keeps growing over time which may cause memory issues if used wrongly. Here’s a related github issue: https://github.com/mrousavy/react-native-mmkv/issues/440

Persistence - React Native MMKV (supports encryption natively and easily integrates with TanStack Query via persistQueryClient)

if you need to store something small and simple use whatever. if is complex and speed is important use something performant. realmDB, https://github.com/mrousavy/react-native-mmkv and others are good fit for the job.

Screw you all, I'll use MMKV as my Local DB: please do not, as explained here.

Try react native mmkv https://github.com/mrousavy/react-native-mmkv

Supports Animation: Tamagui leverages the popular open-source library — Moti as a reanimated driver for animation libraries such as react-native-reanimated and React Native Animated.

FYI react-native-reanimated (https://github.com/software-mansion/react-native-reanimated) is not the Animated API from React Native. react-native-reanimated allows JS code to run on a UI thread that is able to synchronously modify layout, providing alternative synchronous ways for you to hook into the layouting. For instance, as opposed to the asynchronous `measure()` method provided by React Native to measure layouts, react-native-reanimated allows one to call their version of `measure()` (https://docs.swmansion.com/react-native-reanimated/docs/api/...) to perform the same operation on the UI thread, synchronously.

By using libraries like Reanimated, React Native MMKV, and React Native Skia, you leverage the native thread. However, I know there are developers building amazing things who think outside the box. I'm always thrilled when I read engineering blogs from companies like Netflix, Meta, and Shopify. They create solutions beyond the limits.

Currently having issues with reanimated (expo installs 2.14.4). My app will crash randomly – possibly linked to these issues here and here.

Reanimated is probably what you're looking for. https://docs.swmansion.com/react-native-reanimated/

One of is: https://github.com/software-mansion/react-native-reanimated/issues/2327

use third party lib that is a beast, but will require a lot of work and upfront knowledge (https://docs.swmansion.com/react-native-reanimated/)

Catalin Miron is also good. Reanimated 2 animations are still relevant. I also would suggest reading the reanimated docs here. That's how I find my way around.