docs: add auto enable conditions

README.md

@@ -248,3 +248,6 @@ Currently, the following implementations are available:
 - **Cache**
   - [x] `CloudflareCache`: Use Cloudflare's Cache API
   - [x] `MemoryCache`: Only for local development, it just "don't cache anything"
+
+> The auto module will automatically load the correct implementation based on the environment variables.
+> See [src/lib/server/auto/index.ts](./src/lib/server/auto/index.ts)

src/lib/server/cloudflare/README.md

@@ -0,0 +1,9 @@
+# Cloudflare
+
+## CloudflareKVObjStore
+
+Enable when `KV` is binding to a KV namespace.
+
+## CloudflareCache
+
+Enable in Cloudflare's serverless environment. (`caches.default` is available)

src/lib/server/cohere/README.md

@@ -0,0 +1,10 @@
+# Cohere
+
+## CohereEncoder
+
+Enable when `COHERE_API_KEY` is set.
+
+Configurable through environment variables:
+
+- `COHERE_EMBED_MODEL`: The model to use for embedding. Defaults to `large`.
+- `COHERE_EMBED_TRUNCATE`: The truncate strategy to use. Defaults to `LEFT`.

src/lib/server/openai/README.md

@@ -0,0 +1,9 @@
+# OpenAI
+
+## OpenAIEncoder
+
+Enable when `OPENAI_API_KEY` is set.
+
+Configurable through environment variables:
+
+- `OPENAI_EMBED_MODEL`: The model to use for embedding. Defaults to `text-embedding-ada-002`.

src/lib/server/pinecone/README.md

@@ -0,0 +1,5 @@
+# Pinecone
+
+## PineconeVecStore
+
+Enable when `PINECONE_API_KEY` and `PINECONE_ENDPOINT` are set.

src/lib/server/upstash/README.md

@@ -0,0 +1,5 @@
+# Upstash
+
+## UpstashRedisObjStore
+
+Enable when `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN` are set.