diff --git a/2020/makefile b/2020/makefile
index d0a1bd3..4baa560 100644
--- a/2020/makefile
+++ b/2020/makefile
@@ -1,2 +1,17 @@
+.PHONY: default run install build build-release build-tiny
+default: run
+
 run:
 	nimble run
+
+build:
+	nimble build
+
+build-release:
+	nimble build -d:release
+
+build-tiny:
+	nimble build -d:release --opt:size
+
+install:
+	nimble install
diff --git a/2020/src/aoc2020.nim b/2020/src/aoc2020.nim
index 55a6b07..df5140a 100644
--- a/2020/src/aoc2020.nim
+++ b/2020/src/aoc2020.nim
@@ -8,4 +8,5 @@ proc solve_for_day(n: int) {.used.} =
   echo solvers[n]()
 
 when isMainModule:
-  solve_all()
+  # solve_all()
+  solve_for_day(4)
diff --git a/2020/src/day4.nim b/2020/src/day4.nim
new file mode 100644
index 0000000..5f943f4
--- /dev/null
+++ b/2020/src/day4.nim
@@ -0,0 +1,7 @@
+import streams
+
+proc part1*(s: Stream): int =
+  1
+
+proc part2*(s: Stream): int =
+  2
diff --git a/2020/src/day_loader.nim b/2020/src/day_loader.nim
index b6c382d..05da3eb 100644
--- a/2020/src/day_loader.nim
+++ b/2020/src/day_loader.nim
@@ -3,7 +3,7 @@ import input_requestor, os, macros, strformat, tables
 macro loadDays(): untyped =
   var solver_str = "var solvers = {\n"
   result = newStmtList()
-  for day in 1..3:
+  for day in 1..4:
     let module = fmt"day{day}"
     if fileExists joinPath("src/", &"{module}.nim"):
       result.add parseStmt fmt"from {module} import nil"
diff --git a/2020/src/input_requestor.nim b/2020/src/input_requestor.nim
index c35d8f5..75b6542 100644
--- a/2020/src/input_requestor.nim
+++ b/2020/src/input_requestor.nim
@@ -5,7 +5,7 @@ var consoleLog = newConsoleLogger()
 addHandler(consoleLog)
 addHandler(fileLog)
 
-let cacheDir = joinPath(getEnv("XDG_CACHE_HOME", expandTilde("~/.cache")), "/aoc2020-cache")
+let cacheDir = joinPath(getEnv("XDG_CACHE_HOME", expandTilde("~/.cache")), "/aoc2020")
 createDir(cacheDir)
 
 # TODO: add login capabilities via `pass` for auto-cookie-retrieval?
@@ -14,7 +14,8 @@ proc requestAocContentAuthed(url: string): TaintedString =
   let cookie = getEnv("ADVENT_OF_CODE_AUTH_COOKIE", readFile(expandTilde("~/.advent-of-code-auth-cookie")))
   let client = newHttpClient()
   client.headers = newHttpHeaders({"cookie": cookie})
-  client.getContent(url)
+  # client.getContent(url)
+  ""
 
 proc getInputFileStreamForDay*(day: int): FileStream =
   # retrieve the input and dump it to a file if we don't have it yet