diff --git a/.gitattributes b/.gitattributes
index 15a5c58091..668ebff92c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,4 @@
 *.h linguist-language=C
+
+# suppress asm/nonmatchings/ in GitHub diffs
+asm/nonmatchings/**/*.s linguist-generated
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 412af57536..755f2ad1e0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -79,4 +79,4 @@ $ ./format.sh
 
 If `format.sh` has any problems with your code, go and fix the issues. If you can't fix a warning without making the function not match anymore, append `// NOLINT` to the offending line.
 
-Then, please [create a pull request](https://github.com/pmret/nananian/pulls)!
+Then, please [create a pull request](https://github.com/pmret/papermario/pulls)!
diff --git a/INSTALL.md b/INSTALL.md
index 60707d768b..ba0a912e3d 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -23,7 +23,7 @@ Install build dependencies:
 ./install.sh
 ```
 
-Copy a Paper Mario (USA) ROM into the root directory of the repository with the name `baserom.z64`. If you're using WSL, you can enter the Linux filesystem by opening `\\wsl$` in File Explorer; e.g. `\\wsl$\Ubuntu\home\<your username>\papermario`.
+Copy an unmodified Paper Mario (USA) ROM (sha1: `3837f44cda784b466c9a2d99df70d77c322b97a0`) into the root directory of the repository with the name `baserom.z64`. If you're using WSL, you can enter the Linux filesystem by opening `\\wsl$` in File Explorer; e.g. `\\wsl$\Ubuntu\home\<your username>\papermario`.
 
 Configure the build and extract assets from the base ROM:
 ```sh
diff --git a/Jenkinsfile b/Jenkinsfile
index 5da835cee9..da120335b0 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -18,7 +18,7 @@ pipeline {
             }
             steps {
                 sh 'python3 progress.py --csv >> /var/www/papermar.io/html/reports/progress.csv'
-                sh 'python3 progress.py --shield-json >> /var/www/papermar.io/html/reports/progress_shield.json'
+                sh 'python3 progress.py --shield-json > /var/www/papermar.io/html/reports/progress_shield.json'
             }
         }
     }
diff --git a/README.md b/README.md
index bc37b29312..dfb82e6c5a 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ This is a work-in-progress decompilation of Paper Mario (USA).
 
 It builds the following ROM:
 
-* [**papermario.z64**](https://datomatic.no-intro.org/index.php?page=show_record&s=24&n=0537) `sha1: 3837f44cda784b466c9a2d99df70d77c322b97a0`
+* papermario.z64 `sha1: 3837f44cda784b466c9a2d99df70d77c322b97a0`
 
 To set up the repository, see [INSTALL.md](INSTALL.md).
 
diff --git a/configure.py b/configure.py
index 1b4257b062..5955f77742 100755
--- a/configure.py
+++ b/configure.py
@@ -13,7 +13,6 @@ sys.path.append(os.path.dirname(__file__) + "/tools/n64splat")
 import split
 
 INCLUDE_ASM_RE = re.compile(r"_INCLUDE_ASM\([^,]+, ([^,]+), ([^,)]+)") # note _ prefix
-CPPFLAGS = "-Iinclude -Isrc -D _LANGUAGE_C -D _FINALROM -ffreestanding -DF3DEX_GBI_2 -D_MIPS_SZLONG=32"
 
 TARGET = "papermario"
 
@@ -72,9 +71,9 @@ async def task(coro):
     num_tasks_done += 1
     print(f"\rConfiguring build... {(num_tasks_done / num_tasks) * 100:.0f}%", end="")
 
-async def build_c_file(c_file: str, generated_headers):
+async def build_c_file(c_file: str, generated_headers, cppflags):
     # preprocess c_file, but simply put an _ in front of INCLUDE_ASM and SCRIPT
-    stdout, stderr = await shell(f"{cpp} {CPPFLAGS} '-DINCLUDE_ASM(...)=_INCLUDE_ASM(__VA_ARGS__)' '-DSCRIPT(...)=_SCRIPT(__VA_ARGS__)' {c_file} -o -")
+    stdout, stderr = await shell(f"{cpp} {cppflags} '-DINCLUDE_ASM(...)=_INCLUDE_ASM(__VA_ARGS__)' '-DSCRIPT(...)=_SCRIPT(__VA_ARGS__)' {c_file} -o -")
 
     # search for macro usage (note _ prefix)
     uses_dsl = "_SCRIPT(" in stdout
@@ -122,6 +121,7 @@ async def main():
     parser = ArgumentParser(description="Paper Mario build.ninja generator")
     parser.add_argument("--cpp", help="GNU C preprocessor command")
     parser.add_argument("--baserom", default="baserom.z64", help="Path to unmodified Paper Mario (U) z64 ROM")
+    parser.add_argument("--cflags", default="", help="Extra cc/cpp flags")
     args = parser.parse_args()
 
     # on macOS, /usr/bin/cpp defaults to clang rather than gcc (but we need gcc's)
@@ -173,14 +173,16 @@ async def main():
     # generate build.ninja
     n = ninja_syntax.Writer(open("build.ninja", "w"), width=120)
 
+    cppflags = "-Iinclude -Isrc -D _LANGUAGE_C -D _FINALROM -ffreestanding -DF3DEX_GBI_2 -D_MIPS_SZLONG=32 " + args.cflags
+
     n.variable("builddir", "build")
     n.variable("target", TARGET)
     n.variable("cross", "mips-linux-gnu-")
     n.variable("python", sys.executable)
     n.variable("os", "mac" if sys.platform == "darwin" else "linux")
     n.variable("iconv", "tools/iconv.py UTF-8 SHIFT-JIS" if sys.platform == "darwin" else "iconv --from UTF-8 --to SHIFT-JIS")
-    n.variable("cppflags", f"{CPPFLAGS} -Wcomment")
-    n.variable("cflags", "-O2 -quiet -G 0 -mcpu=vr4300 -mfix4300 -mips3 -mgp32 -mfp32 -Wuninitialized -Wshadow")
+    n.variable("cppflags", f"{cppflags} -Wcomment")
+    n.variable("cflags", "-O2 -quiet -G 0 -mcpu=vr4300 -mfix4300 -mips3 -mgp32 -mfp32 -Wuninitialized -Wshadow " + args.cflags)
     n.newline()
 
     n.rule("cc",
@@ -413,7 +415,7 @@ async def main():
 
     # slow tasks generated concurrently
     n.comment("c")
-    tasks = [task(build_c_file(f, "generated_headers")) for f in c_files]
+    tasks = [task(build_c_file(f, "generated_headers", cppflags)) for f in c_files]
     num_tasks = len(tasks)
     num_tasks_done = 0
     await asyncio.gather(*tasks)