Fail gracefully if /dev/tty is not availble (i.e patch for windows users).

Makefile

@@ -6,6 +6,6 @@ assets:
 	python3 tools/themegen.py | gofmt > generatedThemes.go 
 rel:
 	GOOS=darwin GOARCH=amd64 go build -o bin/tt-osx *.go
-	GOOS=windows GOARCH=amd64 go build -o bin/tt-windows *.go
+	GOOS=windows GOARCH=amd64 go build -o bin/tt.exe *.go
 	GOOS=linux GOARCH=amd64 go build -o bin/tt-linux *.go
 	GOOS=linux GOARCH=386 go build -o bin/tt-linux_386 *.go

README.md

@@ -18,6 +18,10 @@ sudo curl -L https://github.com/lemnos/tt/releases/download/0.0.1/tt-linux -o /u
 sudo curl -L https://github.com/lemnos/tt/releases/download/0.0.1/tt-osx -o /usr/local/bin/tt && sudo chmod +x /usr/local/bin/tt
 ```
 
+## Windows
+
+There is a [windows binary](https://github.com/lemnos/tt/releases/download/0.0.1/tt.exe) but it is largely untested. Using WSL is strongly encouraged (or alternatively switching to a proper OS ;)).
+
 ## From source
 
 ```

typer.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"fmt"
+	"io"
+	"io/ioutil"
 	"os"
 	"strconv"
 	"time"
@@ -21,7 +23,7 @@ type typer struct {
 	OnStart  func()
 	SkipWord bool
 	ShowWpm  bool
-	tty      *os.File
+	tty      io.Writer
 
 	currentWordStyle    tcell.Style
 	nextWordStyle       tcell.Style
@@ -32,14 +34,17 @@ type typer struct {
 }
 
 func NewTyper(scr tcell.Screen, fgcol, bgcol, hicol, hicol2, hicol3, errcol tcell.Color) *typer {
+	var tty io.Writer
 	def := tcell.StyleDefault.
 		Foreground(fgcol).
 		Background(bgcol)
 
 	tty, err := os.OpenFile("/dev/tty", os.O_WRONLY, 0)
+	//Will fail on windows, but tt is still mostly usable via tcell
 	if err != nil {
-		panic(err)
+		tty = ioutil.Discard
 	}
+
 	return &typer{
 		Scr:      scr,
 		SkipWord: true,
@@ -113,11 +118,11 @@ func (t *typer) start(s string, timeLimit time.Duration, startImmediately bool)
 		text[i].style = t.backgroundStyle
 	}
 
-	t.tty.WriteString("\033[5 q")
+	defer t.tty.Write([]byte("\033[5 q"))
 
 	//Assumes original cursor shape was a block (the one true cursor shape), there doesn't appear to be a
 	//good way to save/restore the shape if the user has changed it from the otcs.
-	defer t.tty.WriteString("\033[2 q")
+	defer t.tty.Write([]byte("\033[2 q"))
 
 	t.Scr.SetStyle(t.backgroundStyle)
 	idx := 0