basic prefs ??

main.go

···
 	"encoding/json"
 	"flag"
 	"fmt"
+	"io"
 	"log"
 	"net/http"
 	"time"
···
 	appbskyactordefs "tangled.org/whey.party/red-dwarf-server/shims/lex/app/bsky/actor/defs"
 	"tangled.org/whey.party/red-dwarf-server/shims/utils"
 	"tangled.org/whey.party/red-dwarf-server/sticket"
+	"tangled.org/whey.party/red-dwarf-server/store"
 
 	// "github.com/bluesky-social/indigo/atproto/atclient"
 	// comatproto "github.com/bluesky-social/indigo/api/atproto"
···
 
 	router.GET("/ws", func(c *gin.Context) {
 		mailbox.HandleWS(c.Writer, c.Request)
+	})
+
+	kv := store.NewKV()
+
+	router.PUT("/xrpc/app.bsky.actor.putPreferences", func(c *gin.Context) {
+		userDID := c.GetString("user_did")
+		body, err := io.ReadAll(c.Request.Body)
+		if err != nil {
+			c.JSON(400, gin.H{"error": "invalid body"})
+			return
+		}
+
+		kv.Set(userDID, body)
+		c.Status(200)
+
+	})
+
+	router.GET("/xrpc/app.bsky.actor.getPreferences", func(c *gin.Context) {
+		userDID := c.GetString("user_did")
+		val, ok := kv.Get(userDID)
+		if !ok {
+			c.JSON(200, gin.H{"preferences": []any{}})
+			return
+		}
+
+		c.Data(200, "application/json", val)
+
 	})
 
 	bskyappdid, _ := utils.NewDID("did:plc:z72i7hdynmk6r22z27h6tvur")

store/kv.go

···
+package store
+
+import "sync"
+
+type KV struct {
+	mu sync.RWMutex
+	m  map[string][]byte
+}
+
+func NewKV() *KV {
+	return &KV{
+		m: make(map[string][]byte),
+	}
+}
+
+func (kv *KV) Get(key string) ([]byte, bool) {
+	kv.mu.RLock()
+	defer kv.mu.RUnlock()
+	v, ok := kv.m[key]
+	return v, ok
+}
+
+func (kv *KV) Set(key string, val []byte) {
+	kv.mu.Lock()
+	defer kv.mu.Unlock()
+	kv.m[key] = val
+}