diff --git a/Makefile b/Makefile
index 7073cef..a5ee112 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,3 @@
-all: build
-
 build: lint
 	CGO_ENABLED=0 go build -v -trimpath -ldflags='-s -w'
 
@@ -15,4 +13,4 @@ send: pack
 clean:
 	rm -f tgbot_misaka_5882f7 tgbot_misaka_5882f7.*
 
-.PHONY: all build pack send clean test
+.PHONY: build pack send clean
diff --git a/README.md b/README.md
index e93a96d..55a39da 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,3 @@
-# `MISAKA 5882F7`
+`MISAKA 5882F7`
 
 Just another random telegram bot.
-
-Code is messy. Expect a lot of hiccups.
-
-## Known problems
-
-- Message caching needs improvement
diff --git a/assistant.go b/assistant.go
index 4b4ef18..6fd09c3 100644
--- a/assistant.go
+++ b/assistant.go
@@ -1,8 +1,6 @@
 package main
 
 import (
-	"crypto/md5"
-	"encoding/base64"
 	"strconv"
 	"strings"
 	"time"
@@ -136,10 +134,7 @@ func assistantStreamedResponse(request openai.ChatRequest, cb assistantStreamedR
 					if minWaitSatisfied {
 						break Drain
 					}
-					select {
-					case <-minWait:
-					case <-resp.Done:
-					}
+					<-minWait
 					minWaitSatisfied = true
 				}
 			}
@@ -160,7 +155,7 @@ func assistantStreamedResponse(request openai.ChatRequest, cb assistantStreamedR
 			minWaitDurSecs := lo.Min([]int{nUpdates, 4}) + nErrs*3
 			minWait = time.After(time.Duration(minWaitDurSecs) * time.Second)
 
-			// Send the partial message
+			// send the partial message
 			respText := respBuilder.String() + assistantWritingSign
 			if err := cb(respText, false); err != nil {
 				logger.Warnw("failed to send partial update", "error", err)
@@ -236,7 +231,6 @@ func handleAssistantConversation(c tele.Context, thread []*tele.Message) error {
 		Messages:    chatReqMsgs,
 		Temperature: lo.ToPtr(0.42),
 		MaxTokens:   2048,
-		User:        assistantHashUserId(lastMsg.Sender.ID),
 	}
 
 	typingNotifyCh := setTyping(c)
@@ -275,9 +269,3 @@ func assistantRemoveMention(msg, name string) string {
 	}
 	return orig
 }
-
-func assistantHashUserId(uid int64) string {
-	seasoned := []byte("RdnuRPqp66vtbc28QRO0ecKSLKXifz7G9UbXLoyCMpw" + strconv.FormatInt(uid, 10))
-	hashed := md5.Sum(seasoned) // Don't judge me
-	return base64.URLEncoding.EncodeToString(hashed[:])[:22]
-}
diff --git a/openai/chat.go b/openai/chat.go
index 3564ed6..fc213a8 100644
--- a/openai/chat.go
+++ b/openai/chat.go
@@ -18,16 +18,16 @@ type ChatMessage struct {
 type ChatRequest struct {
 	Model            string             `json:"model"`
 	Messages         []ChatMessage      `json:"messages"`
-	Temperature      *float64           `json:"temperature,omitempty"` // What sampling temperature to use, between 0 and 2.
-	TopP             *float64           `json:"top_p,omitempty"`       // Nucleus sampling. Specify this or temperature but not both.
-	N                int                `json:"n,omitempty"`           // How many chat completion choices to generate for each input message.
-	Stream           bool               `json:"stream,omitempty"`      // If set, partial message deltas will be sent as data-only server-sent events as they become available.
-	Stop             []string           `json:"stop,omitempty"`        // Up to 4 sequences where the API will stop generating further tokens.
+	Temperature      *float64           `json:"temperature,omitempty"`
+	TopP             *float64           `json:"top_p,omitempty"`
+	N                int                `json:"n,omitempty"`
+	Stream           bool               `json:"stream,omitempty"`
+	Stop             []string           `json:"stop,omitempty"`
 	MaxTokens        int                `json:"max_tokens,omitempty"`
-	PresencePenalty  *float64           `json:"presence_penalty,omitempty"`  // Number between -2.0 and 2.0.
-	FrequencyPenalty *float64           `json:"frequency_penalty,omitempty"` // Number between -2.0 and 2.0.
-	LogitBias        map[string]float64 `json:"logit_bias,omitempty"`        // Modify the likelihood of specified tokens appearing in the completion.
-	User             string             `json:"user,omitempty"`              // A unique identifier representing your end-user, which can help OpenAI to monitor and detect abuse.
+	PresencePenalty  *float64           `json:"presence_penalty,omitempty"`
+	FrequencyPenalty *float64           `json:"frequency_penalty,omitempty"`
+	LogitBias        map[string]float64 `json:"logit_bias,omitempty"`
+	User             string             `json:"user,omitempty"`
 }
 
 type ChatResponseChoice struct {
@@ -51,7 +51,6 @@ type ChatResponseStream struct {
 	Created int
 	Model   string
 	Stream  chan string
-	Done    chan struct{}
 	Err     error
 }
 
diff --git a/openai/client.go b/openai/client.go
index 1800cf9..e7abc7f 100644
--- a/openai/client.go
+++ b/openai/client.go
@@ -77,15 +77,11 @@ func (c *Client) ChatCompletionStream(request ChatRequest) (*ChatResponseStream,
 		return nil, errors.Errorf("status code: %d, body: %q", resp.StatusCode(), respBodyStr)
 	}
 
-	ret := &ChatResponseStream{
-		Stream: make(chan string, 1024),
-		Done:   make(chan struct{}),
-	}
+	ret := &ChatResponseStream{Stream: make(chan string, 1024)}
 	go func() {
 		defer func() {
 			rbody.Close()
 			close(ret.Stream)
-			close(ret.Done)
 		}()
 
 		var contentBegan bool