diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..bc3b5c91
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,22 @@
+ModernFix is a standard Minecraft-style Gradle project powered by Architectury Loom. To build the mod for all platforms,
+run the `build` task (e.g. via `./gradlew build`). You can also use `./gradlew forge:build` or `./gradlew fabric:build`
+to build for just one loader (e.g. when debugging and wanting to rebuild quickly).
+
+You must use Java 17 to develop ModernFix as the toolchain requires it. Nonetheless, the 1.16 mod JARs will work on
+a Minecraft instance with Java 8.
+
+## Submitting pull requests
+
+Code or documentation contributions are welcome. Please keep the following points in mind:
+
+* This project supports many Minecraft versions. Ideally, contributions should be made to the oldest relevant MC version.
+For instance, a PR optimizing new worldgen should be made to 1.18 (not 1.19 or 1.20) while a PR optimizing something
+like recipes should be made to 1.16 (the oldest supported version).
+
+  This somewhat unconventional policy ensures that all supported versions are treated equal when it comes to development,
+rather than the onus being on other modders and players to backport changes that are needed. Changes to older versions are
+quickly ported up to the latest one as part of the regular development cycle. You are still welcome to open PRs against
+a newer branch if desired - but the change will likely be applied manually and not merged as a regular PR.
+
+* Please ensure your code is reasonably neat and sufficiently documented. Remember that self-documenting code is always
+better.
diff --git a/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/dynamic_resources/ModelManagerMixin.java b/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/dynamic_resources/ModelManagerMixin.java
index ce620eed..62179e16 100644
--- a/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/dynamic_resources/ModelManagerMixin.java
+++ b/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/dynamic_resources/ModelManagerMixin.java
@@ -16,6 +16,7 @@ import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
 
+import java.io.BufferedReader;
 import java.io.IOException;
 import java.util.List;
 import java.util.Map;
@@ -43,8 +44,8 @@ public class ModelManagerMixin {
 
     private BlockModel loadSingleBlockModel(ResourceManager manager, ResourceLocation location) {
         return manager.getResource(location).map(resource -> {
-            try {
-                return BlockModel.fromStream(resource.openAsReader());
+            try (BufferedReader reader = resource.openAsReader()) {
+                return BlockModel.fromStream(reader);
             } catch(IOException e) {
                 ModernFix.LOGGER.error("Couldn't load model", e);
                 return null;
@@ -54,8 +55,8 @@ public class ModelManagerMixin {
 
     private List<ModelBakery.LoadedJson> loadSingleBlockState(ResourceManager manager, ResourceLocation location) {
         return manager.getResourceStack(location).stream().map(resource -> {
-            try {
-                return new ModelBakery.LoadedJson(resource.sourcePackId(), GsonHelper.parse(resource.openAsReader()));
+            try (BufferedReader reader = resource.openAsReader()) {
+                return new ModelBakery.LoadedJson(resource.sourcePackId(), GsonHelper.parse(reader));
             } catch(IOException e) {
                 ModernFix.LOGGER.error("Couldn't load blockstate", e);
                 return null;
diff --git a/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/dynamic_resources/ModelManagerMixin.java b/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/dynamic_resources/ModelManagerMixin.java
index 4e7cbfd3..98066097 100644
--- a/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/dynamic_resources/ModelManagerMixin.java
+++ b/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/dynamic_resources/ModelManagerMixin.java
@@ -16,8 +16,11 @@ import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Redirect;
 
+import java.io.BufferedReader;
 import java.io.IOException;
-import java.util.*;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executor;
 import java.util.stream.Collectors;
@@ -41,8 +44,8 @@ public class ModelManagerMixin {
 
     private BlockModel loadSingleBlockModel(ResourceManager manager, ResourceLocation location) {
         return manager.getResource(location).map(resource -> {
-            try {
-                return BlockModel.fromStream(resource.openAsReader());
+            try (BufferedReader reader = resource.openAsReader()) {
+                return BlockModel.fromStream(reader);
             } catch(IOException e) {
                 ModernFix.LOGGER.error("Couldn't load model", e);
                 return null;
@@ -52,8 +55,8 @@ public class ModelManagerMixin {
 
     private List<ModelBakery.LoadedJson> loadSingleBlockState(ResourceManager manager, ResourceLocation location) {
         return manager.getResourceStack(location).stream().map(resource -> {
-            try {
-                return new ModelBakery.LoadedJson(resource.sourcePackId(), GsonHelper.parse(resource.openAsReader()));
+            try (BufferedReader reader = resource.openAsReader()) {
+                return new ModelBakery.LoadedJson(resource.sourcePackId(), GsonHelper.parse(reader));
             } catch(IOException e) {
                 ModernFix.LOGGER.error("Couldn't load blockstate", e);
                 return null;