9 files changed, 126 insertions, 81 deletions

diff --git a/launcher/modplatform/flame/FileResolvingTask.cpp b/launcher/modplatform/flame/FileResolvingTask.cpp
index ae168bbd..5865bee9 100644
--- a/launcher/modplatform/flame/FileResolvingTask.cpp
+++ b/launcher/modplatform/flame/FileResolvingTask.cpp
@@ -1,6 +1,9 @@
 #include "FileResolvingTask.h"
 
 #include "Json.h"
+#include "modplatform/ModIndex.h"
+#include "net/ApiDownload.h"
+#include "net/ApiUpload.h"
 #include "net/Upload.h"
 
 #include "modplatform/modrinth/ModrinthPackIndex.h"
@@ -38,7 +41,7 @@ void Flame::FileResolvingTask::executeTask()
             return l;
         }));
     QByteArray data = Json::toText(object);
-    auto dl = Net::Upload::makeByteArray(QUrl("https://api.curseforge.com/v1/mods/files"), result, data);
+    auto dl = Net::ApiUpload::makeByteArray(QUrl("https://api.curseforge.com/v1/mods/files"), result, data);
     m_dljob->addNetAction(dl);
 
     auto step_progress = std::make_shared<TaskStepProgress>();
@@ -93,14 +96,14 @@ void Flame::FileResolvingTask::netJobFinished()
         auto& out = m_toProcess.files[fileid];
         try {
             out.parseFromObject(Json::requireObject(file));
-        } catch (const JSONValidationError& e) {
+        } catch ([[maybe_unused]] const JSONValidationError& e) {
             qDebug() << "Blocked mod on curseforge" << out.fileName;
             auto hash = out.hash;
             if (!hash.isEmpty()) {
                 auto url = QString("https://api.modrinth.com/v2/version_file/%1?algorithm=sha1").arg(hash);
                 auto output = std::make_shared<QByteArray>();
-                auto dl = Net::Download::makeByteArray(QUrl(url), output);
-                QObject::connect(dl.get(), &Net::Download::succeeded, [&out]() { out.resolved = true; });
+                auto dl = Net::ApiDownload::makeByteArray(QUrl(url), output);
+                QObject::connect(dl.get(), &Net::ApiDownload::succeeded, [&out]() { out.resolved = true; });
 
                 m_checkJob->addNetAction(dl);
                 blockedProjects.insert(&out, output);
@@ -151,7 +154,7 @@ void Flame::FileResolvingTask::modrinthCheckFinished()
         // If there's more than one mod loader for this version, we can't know for sure
         // which file is relative to each loader, so it's best to not use any one and
         // let the user download it manually.
-        if (file.loaders.size() <= 1) {
+        if (!file.loaders || hasSingleModLoaderSelected(file.loaders)) {
             out->url = file.downloadUrl;
             qDebug() << "Found alternative on modrinth " << out->fileName;
         } else {
@@ -171,9 +174,9 @@ void Flame::FileResolvingTask::modrinthCheckFinished()
             auto projectId = mod->projectId;
             auto output = std::make_shared<QByteArray>();
             auto url = QString("https://api.curseforge.com/v1/mods/%1").arg(projectId);
-            auto dl = Net::Download::makeByteArray(url, output);
+            auto dl = Net::ApiDownload::makeByteArray(url, output);
             qDebug() << "Fetching url slug for file:" << mod->fileName;
-            QObject::connect(dl.get(), &Net::Download::succeeded, [block, index, output]() {
+            QObject::connect(dl.get(), &Net::ApiDownload::succeeded, [block, index, output]() {
                 auto mod = block->at(index);  // use the shared_ptr so it is captured and only freed when we are done
                 auto json = QJsonDocument::fromJson(*output);
                 auto base =
diff --git a/launcher/modplatform/flame/FlameAPI.cpp b/launcher/modplatform/flame/FlameAPI.cpp
index 5b0b1d8b..e99ce3a5 100644
--- a/launcher/modplatform/flame/FlameAPI.cpp
+++ b/launcher/modplatform/flame/FlameAPI.cpp
@@ -6,8 +6,9 @@
 #include "FlameModIndex.h"
 
 #include "Application.h"
-#include "BuildConfig.h"
 #include "Json.h"
+#include "net/ApiDownload.h"
+#include "net/ApiUpload.h"
 #include "net/NetJob.h"
 #include "net/Upload.h"
 
@@ -26,7 +27,7 @@ Task::Ptr FlameAPI::matchFingerprints(const QList<uint>& fingerprints, std::shar
     QJsonDocument body(body_obj);
     auto body_raw = body.toJson();
 
-    netJob->addNetAction(Net::Upload::makeByteArray(QString("https://api.curseforge.com/v1/fingerprints"), response, body_raw));
+    netJob->addNetAction(Net::ApiUpload::makeByteArray(QString("https://api.curseforge.com/v1/fingerprints"), response, body_raw));
 
     return netJob;
 }
@@ -38,7 +39,7 @@ auto FlameAPI::getModFileChangelog(int modId, int fileId) -> QString
 
     auto netJob = makeShared<NetJob>(QString("Flame::FileChangelog"), APPLICATION->network());
     auto response = std::make_shared<QByteArray>();
-    netJob->addNetAction(Net::Download::makeByteArray(
+    netJob->addNetAction(Net::ApiDownload::makeByteArray(
         QString("https://api.curseforge.com/v1/mods/%1/files/%2/changelog")
             .arg(QString::fromStdString(std::to_string(modId)), QString::fromStdString(std::to_string(fileId))),
         response));
@@ -73,8 +74,8 @@ auto FlameAPI::getModDescription(int modId) -> QString
 
     auto netJob = makeShared<NetJob>(QString("Flame::ModDescription"), APPLICATION->network());
     auto response = std::make_shared<QByteArray>();
-    netJob->addNetAction(
-        Net::Download::makeByteArray(QString("https://api.curseforge.com/v1/mods/%1/description").arg(QString::number(modId)), response));
+    netJob->addNetAction(Net::ApiDownload::makeByteArray(
+        QString("https://api.curseforge.com/v1/mods/%1/description").arg(QString::number(modId)), response));
 
     QObject::connect(netJob.get(), &NetJob::succeeded, [&netJob, response, &description] {
         QJsonParseError parse_error{};
@@ -113,7 +114,7 @@ auto FlameAPI::getLatestVersion(VersionSearchArgs&& args) -> ModPlatform::Indexe
     auto response = std::make_shared<QByteArray>();
     ModPlatform::IndexedVersion ver;
 
-    netJob->addNetAction(Net::Download::makeByteArray(versions_url, response));
+    netJob->addNetAction(Net::ApiDownload::makeByteArray(versions_url, response));
 
     QObject::connect(netJob.get(), &NetJob::succeeded, [response, args, &ver] {
         QJsonParseError parse_error{};
@@ -129,19 +130,13 @@ auto FlameAPI::getLatestVersion(VersionSearchArgs&& args) -> ModPlatform::Indexe
             auto obj = Json::requireObject(doc);
             auto arr = Json::requireArray(obj, "data");
 
-            QJsonObject latest_file_obj;
-            ModPlatform::IndexedVersion ver_tmp;
-
             for (auto file : arr) {
                 auto file_obj = Json::requireObject(file);
                 auto file_tmp = FlameMod::loadIndexedPackVersion(file_obj);
-                if (file_tmp.date > ver_tmp.date) {
-                    ver_tmp = file_tmp;
-                    latest_file_obj = file_obj;
-                }
+                if (file_tmp.date > ver.date && (!args.loaders.has_value() || !file_tmp.loaders || args.loaders.value() & file_tmp.loaders))
+                    ver = file_tmp;
             }
 
-            ver = FlameMod::loadIndexedPackVersion(latest_file_obj);
         } catch (Json::JsonException& e) {
             qCritical() << "Failed to parse response from a version request.";
             qCritical() << e.what();
@@ -173,7 +168,7 @@ Task::Ptr FlameAPI::getProjects(QStringList addonIds, std::shared_ptr<QByteArray
     QJsonDocument body(body_obj);
     auto body_raw = body.toJson();
 
-    netJob->addNetAction(Net::Upload::makeByteArray(QString("https://api.curseforge.com/v1/mods"), response, body_raw));
+    netJob->addNetAction(Net::ApiUpload::makeByteArray(QString("https://api.curseforge.com/v1/mods"), response, body_raw));
 
     QObject::connect(netJob.get(), &NetJob::failed, [body_raw] { qDebug() << body_raw; });
 
@@ -195,13 +190,24 @@ Task::Ptr FlameAPI::getFiles(const QStringList& fileIds, std::shared_ptr<QByteAr
     QJsonDocument body(body_obj);
     auto body_raw = body.toJson();
 
-    netJob->addNetAction(Net::Upload::makeByteArray(QString("https://api.curseforge.com/v1/mods/files"), response, body_raw));
+    netJob->addNetAction(Net::ApiUpload::makeByteArray(QString("https://api.curseforge.com/v1/mods/files"), response, body_raw));
 
     QObject::connect(netJob.get(), &NetJob::failed, [body_raw] { qDebug() << body_raw; });
 
     return netJob;
 }
 
+Task::Ptr FlameAPI::getFile(const QString& addonId, const QString& fileId, std::shared_ptr<QByteArray> response) const
+{
+    auto netJob = makeShared<NetJob>(QString("Flame::GetFile"), APPLICATION->network());
+    netJob->addNetAction(
+        Net::ApiDownload::makeByteArray(QUrl(QString("https://api.curseforge.com/v1/mods/%1/files/%2").arg(addonId, fileId)), response));
+
+    QObject::connect(netJob.get(), &NetJob::failed, [addonId, fileId] { qDebug() << "Flame API file failure" << addonId << fileId; });
+
+    return netJob;
+}
+
 // https://docs.curseforge.com/?python#tocS_ModsSearchSortField
 static QList<ResourceAPI::SortingMethod> s_sorts = { { 1, "Featured", QObject::tr("Sort by Featured") },
                                                      { 2, "Popularity", QObject::tr("Sort by Popularity") },
diff --git a/launcher/modplatform/flame/FlameAPI.h b/launcher/modplatform/flame/FlameAPI.h
index 49bc316f..47350c33 100644
--- a/launcher/modplatform/flame/FlameAPI.h
+++ b/launcher/modplatform/flame/FlameAPI.h
@@ -20,10 +20,14 @@ class FlameAPI : public NetworkResourceAPI {
     Task::Ptr getProjects(QStringList addonIds, std::shared_ptr<QByteArray> response) const override;
     Task::Ptr matchFingerprints(const QList<uint>& fingerprints, std::shared_ptr<QByteArray> response);
     Task::Ptr getFiles(const QStringList& fileIds, std::shared_ptr<QByteArray> response) const;
+    Task::Ptr getFile(const QString& addonId, const QString& fileId, std::shared_ptr<QByteArray> response) const;
 
     [[nodiscard]] auto getSortingMethods() const -> QList<ResourceAPI::SortingMethod> override;
 
-    static inline auto validateModLoaders(ModLoaderTypes loaders) -> bool { return loaders & (Forge | Fabric | Quilt); }
+    static inline auto validateModLoaders(ModPlatform::ModLoaderTypes loaders) -> bool
+    {
+        return loaders & (ModPlatform::NeoForge | ModPlatform::Forge | ModPlatform::Fabric | ModPlatform::Quilt);
+    }
 
    private:
     static int getClassId(ModPlatform::ResourceType type)
@@ -37,19 +41,42 @@ class FlameAPI : public NetworkResourceAPI {
         }
     }
 
-    static int getMappedModLoader(ModLoaderTypes loaders)
+    static int getMappedModLoader(ModPlatform::ModLoaderType loaders)
     {
         // https://docs.curseforge.com/?http#tocS_ModLoaderType
-        if (loaders & Forge)
-            return 1;
-        if (loaders & Fabric)
-            return 4;
-        // TODO: remove this once Quilt drops official Fabric support
-        if (loaders & Quilt)  // NOTE: Most if not all Fabric mods should work *currently*
-            return 4;         // Quilt would probably be 5
+        switch (loaders) {
+            case ModPlatform::Forge:
+                return 1;
+            case ModPlatform::Cauldron:
+                return 2;
+            case ModPlatform::LiteLoader:
+                return 3;
+            case ModPlatform::Fabric:
+                return 4;
+            case ModPlatform::Quilt:
+                return 5;
+            case ModPlatform::NeoForge:
+                return 6;
+        }
         return 0;
     }
 
+    static auto getModLoaderStrings(const ModPlatform::ModLoaderTypes types) -> const QStringList
+    {
+        QStringList l;
+        for (auto loader : { ModPlatform::NeoForge, ModPlatform::Forge, ModPlatform::Fabric, ModPlatform::Quilt }) {
+            if (types & loader) {
+                l << QString::number(getMappedModLoader(loader));
+            }
+        }
+        return l;
+    }
+
+    static auto getModLoaderFilters(ModPlatform::ModLoaderTypes types) -> const QString
+    {
+        return "[" + getModLoaderStrings(types).join(',') + "]";
+    }
+
    private:
     [[nodiscard]] std::optional<QString> getSearchURL(SearchArgs const& args) const override
     {
@@ -66,7 +93,7 @@ class FlameAPI : public NetworkResourceAPI {
             get_arguments.append(QString("sortField=%1").arg(args.sorting.value().index));
         get_arguments.append("sortOrder=desc");
         if (args.loaders.has_value())
-            get_arguments.append(QString("modLoaderType=%1").arg(getMappedModLoader(args.loaders.value())));
+            get_arguments.append(QString("modLoaderTypes=%1").arg(getModLoaderFilters(args.loaders.value())));
         get_arguments.append(gameVersionStr);
 
         return "https://api.curseforge.com/v1/mods/search?gameId=432&" + get_arguments.join('&');
@@ -80,47 +107,27 @@ class FlameAPI : public NetworkResourceAPI {
     [[nodiscard]] std::optional<QString> getVersionsURL(VersionSearchArgs const& args) const override
     {
         auto addonId = args.pack.addonId.toString();
-        QString url{ QString("https://api.curseforge.com/v1/mods/%1/files?pageSize=10000&").arg(addonId) };
+        QString url = QString("https://api.curseforge.com/v1/mods/%1/files?pageSize=10000").arg(addonId);
 
-        QStringList get_parameters;
         if (args.mcVersions.has_value())
-            get_parameters.append(QString("gameVersion=%1").arg(args.mcVersions.value().front().toString()));
-
-        if (args.loaders.has_value()) {
-            int mappedModLoader = getMappedModLoader(args.loaders.value());
-
-            if (args.loaders.value() & Quilt) {
-                auto overide = ModPlatform::getOverrideDeps();
-                auto over = std::find_if(overide.cbegin(), overide.cend(), [addonId](auto dep) {
-                    return dep.provider == ModPlatform::ResourceProvider::FLAME && addonId == dep.quilt;
-                });
-                if (over != overide.cend()) {
-                    mappedModLoader = 5;
-                }
-            }
+            url += QString("&gameVersion=%1").arg(args.mcVersions.value().front().toString());
 
-            get_parameters.append(QString("modLoaderType=%1").arg(mappedModLoader));
+        if (args.loaders.has_value() && ModPlatform::hasSingleModLoaderSelected(args.loaders.value())) {
+            int mappedModLoader = getMappedModLoader(static_cast<ModPlatform::ModLoaderType>(static_cast<int>(args.loaders.value())));
+            url += QString("&modLoaderType=%1").arg(mappedModLoader);
         }
-
-        return url + get_parameters.join('&');
+        return url;
     };
 
     [[nodiscard]] std::optional<QString> getDependencyURL(DependencySearchArgs const& args) const override
     {
-        auto mappedModLoader = getMappedModLoader(args.loader);
         auto addonId = args.dependency.addonId.toString();
-        if (args.loader & Quilt) {
-            auto overide = ModPlatform::getOverrideDeps();
-            auto over = std::find_if(overide.cbegin(), overide.cend(), [addonId](auto dep) {
-                return dep.provider == ModPlatform::ResourceProvider::FLAME && addonId == dep.quilt;
-            });
-            if (over != overide.cend()) {
-                mappedModLoader = 5;
-            }
+        auto url =
+            QString("https://api.curseforge.com/v1/mods/%1/files?pageSize=10000&gameVersion=%2").arg(addonId, args.mcVersion.toString());
+        if (args.loader && ModPlatform::hasSingleModLoaderSelected(args.loader)) {
+            int mappedModLoader = getMappedModLoader(static_cast<ModPlatform::ModLoaderType>(static_cast<int>(args.loader)));
+            url += QString("&modLoaderType=%1").arg(mappedModLoader);
         }
-        return QString("https://api.curseforge.com/v1/mods/%1/files?pageSize=10000&gameVersion=%2&modLoaderType=%3")
-            .arg(addonId)
-            .arg(args.mcVersion.toString())
-            .arg(mappedModLoader);
+        return url;
     };
 };
diff --git a/launcher/modplatform/flame/FlameCheckUpdate.cpp b/launcher/modplatform/flame/FlameCheckUpdate.cpp
index a2628e34..476a4667 100644
--- a/launcher/modplatform/flame/FlameCheckUpdate.cpp
+++ b/launcher/modplatform/flame/FlameCheckUpdate.cpp
@@ -5,13 +5,13 @@
 #include <MurmurHash2.h>
 #include <memory>
 
-#include "FileSystem.h"
 #include "Json.h"
 
 #include "ResourceDownloadTask.h"
 
 #include "minecraft/mod/ModFolderModel.h"
-#include "minecraft/mod/ResourceFolderModel.h"
+
+#include "net/ApiDownload.h"
 
 static FlameAPI api;
 
@@ -33,7 +33,7 @@ ModPlatform::IndexedPack getProjectInfo(ModPlatform::IndexedVersion& ver_info)
 
     auto response = std::make_shared<QByteArray>();
     auto url = QString("https://api.curseforge.com/v1/mods/%1").arg(ver_info.addonId.toString());
-    auto dl = Net::Download::makeByteArray(url, response);
+    auto dl = Net::ApiDownload::makeByteArray(url, response);
     get_project_job->addNetAction(dl);
 
     QObject::connect(get_project_job, &NetJob::succeeded, [response, &pack]() {
@@ -77,7 +77,7 @@ ModPlatform::IndexedVersion getFileInfo(int addonId, int fileId)
 
     auto response = std::make_shared<QByteArray>();
     auto url = QString("https://api.curseforge.com/v1/mods/%1/files/%2").arg(QString::number(addonId), QString::number(fileId));
-    auto dl = Net::Download::makeByteArray(url, response);
+    auto dl = Net::ApiDownload::makeByteArray(url, response);
     get_file_info_job->addNetAction(dl);
 
     QObject::connect(get_file_info_job, &NetJob::succeeded, [response, &ver]() {
diff --git a/launcher/modplatform/flame/FlameCheckUpdate.h b/launcher/modplatform/flame/FlameCheckUpdate.h
index e3465d7e..05c619a7 100644
--- a/launcher/modplatform/flame/FlameCheckUpdate.h
+++ b/launcher/modplatform/flame/FlameCheckUpdate.h
@@ -10,7 +10,7 @@ class FlameCheckUpdate : public CheckUpdateTask {
    public:
     FlameCheckUpdate(QList<Mod*>& mods,
                      std::list<Version>& mcVersions,
-                     std::optional<ResourceAPI::ModLoaderTypes> loaders,
+                     std::optional<ModPlatform::ModLoaderTypes> loaders,
                      std::shared_ptr<ModFolderModel> mods_folder)
         : CheckUpdateTask(mods, mcVersions, loaders, mods_folder)
     {}
diff --git a/launcher/modplatform/flame/FlameInstanceCreationTask.cpp b/launcher/modplatform/flame/FlameInstanceCreationTask.cpp
index 8b662294..45b4e212 100644
--- a/launcher/modplatform/flame/FlameInstanceCreationTask.cpp
+++ b/launcher/modplatform/flame/FlameInstanceCreationTask.cpp
@@ -61,6 +61,7 @@
 #include "meta/VersionList.h"
 #include "minecraft/World.h"
 #include "minecraft/mod/tasks/LocalResourceParse.h"
+#include "net/ApiDownload.h"
 
 static const FlameAPI api;
 
@@ -283,7 +284,7 @@ QString FlameCreationTask::getVersionForLoader(QString uid, QString loaderType,
             // filter by minecraft version, if the loader depends on a certain version.
             // not all mod loaders depend on a given Minecraft version, so we won't do this
             // filtering for those loaders.
-            if (loaderType == "forge") {
+            if (loaderType == "forge" || loaderType == "neoforge") {
                 auto iter = std::find_if(reqs.begin(), reqs.end(), [mcVersion](const Meta::Require& req) {
                     return req.uid == "net.minecraft" && req.equalsVersion == mcVersion;
                 });
@@ -349,7 +350,11 @@ bool FlameCreationTask::createInstance()
 
     for (auto& loader : m_pack.minecraft.modLoaders) {
         auto id = loader.id;
-        if (id.startsWith("forge-")) {
+        if (id.startsWith("neoforge-")) {
+            id.remove("neoforge-");
+            loaderType = "neoforge";
+            loaderUid = "net.neoforged";
+        } else if (id.startsWith("forge-")) {
             id.remove("forge-");
             loaderType = "forge";
             loaderUid = "net.minecraftforge";
@@ -523,7 +528,7 @@ void FlameCreationTask::setupDownloadJob(QEventLoop& loop)
             case Flame::File::Type::Mod: {
                 if (!result.url.isEmpty()) {
                     qDebug() << "Will download" << result.url << "to" << path;
-                    auto dl = Net::Download::makeFile(result.url, path);
+                    auto dl = Net::ApiDownload::makeFile(result.url, path);
                     m_files_job->addNetAction(dl);
                 }
                 break;
diff --git a/launcher/modplatform/flame/FlameModIndex.cpp b/launcher/modplatform/flame/FlameModIndex.cpp
index 227ce489..494dc2a7 100644
--- a/launcher/modplatform/flame/FlameModIndex.cpp
+++ b/launcher/modplatform/flame/FlameModIndex.cpp
@@ -54,7 +54,7 @@ void FlameMod::loadURLs(ModPlatform::IndexedPack& pack, QJsonObject& obj)
         pack.extraDataLoaded = true;
 }
 
-void FlameMod::loadBody(ModPlatform::IndexedPack& pack, QJsonObject& obj)
+void FlameMod::loadBody(ModPlatform::IndexedPack& pack, [[maybe_unused]] QJsonObject& obj)
 {
     pack.extraData.body = api.getModDescription(pack.addonId.toInt());
 
@@ -75,12 +75,13 @@ static QString enumToString(int hash_algorithm)
 
 void FlameMod::loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
                                        QJsonArray& arr,
-                                       const shared_qobject_ptr<QNetworkAccessManager>& network,
+                                       [[maybe_unused]] const shared_qobject_ptr<QNetworkAccessManager>& network,
                                        const BaseInstance* inst)
 {
     QVector<ModPlatform::IndexedVersion> unsortedVersions;
     auto profile = (dynamic_cast<const MinecraftInstance*>(inst))->getPackProfile();
     QString mcVersion = profile->getComponentVersion("net.minecraft");
+    auto loaders = profile->getSupportedModLoaders();
 
     for (auto versionIter : arr) {
         auto obj = versionIter.toObject();
@@ -89,7 +90,8 @@ void FlameMod::loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
         if (!file.addonId.isValid())
             file.addonId = pack.addonId;
 
-        if (file.fileId.isValid())  // Heuristic to check if the returned value is valid
+        if (file.fileId.isValid() &&
+            (!loaders.has_value() || !file.loaders || loaders.value() & file.loaders))  // Heuristic to check if the returned value is valid
             unsortedVersions.append(file);
     }
 
@@ -115,6 +117,19 @@ auto FlameMod::loadIndexedPackVersion(QJsonObject& obj, bool load_changelog) ->
 
         if (str.contains('.'))
             file.mcVersion.append(str);
+        auto loader = str.toLower();
+        if (loader == "neoforge")
+            file.loaders |= ModPlatform::NeoForge;
+        if (loader == "forge")
+            file.loaders |= ModPlatform::Forge;
+        if (loader == "cauldron")
+            file.loaders |= ModPlatform::Cauldron;
+        if (loader == "liteloader")
+            file.loaders |= ModPlatform::LiteLoader;
+        if (loader == "fabric")
+            file.loaders |= ModPlatform::Fabric;
+        if (loader == "quilt")
+            file.loaders |= ModPlatform::Quilt;
     }
 
     file.addonId = Json::requireInteger(obj, "modId");
@@ -173,8 +188,11 @@ auto FlameMod::loadIndexedPackVersion(QJsonObject& obj, bool load_changelog) ->
     return file;
 }
 
-ModPlatform::IndexedVersion FlameMod::loadDependencyVersions(const ModPlatform::Dependency& m, QJsonArray& arr)
+ModPlatform::IndexedVersion FlameMod::loadDependencyVersions(const ModPlatform::Dependency& m, QJsonArray& arr, const BaseInstance* inst)
 {
+    auto profile = (dynamic_cast<const MinecraftInstance*>(inst))->getPackProfile();
+    QString mcVersion = profile->getComponentVersion("net.minecraft");
+    auto loaders = profile->getSupportedModLoaders();
     QVector<ModPlatform::IndexedVersion> versions;
     for (auto versionIter : arr) {
         auto obj = versionIter.toObject();
@@ -183,7 +201,8 @@ ModPlatform::IndexedVersion FlameMod::loadDependencyVersions(const ModPlatform::
         if (!file.addonId.isValid())
             file.addonId = m.addonId;
 
-        if (file.fileId.isValid())  // Heuristic to check if the returned value is valid
+        if (file.fileId.isValid() &&
+            (!loaders.has_value() || !file.loaders || loaders.value() & file.loaders))  // Heuristic to check if the returned value is valid
             versions.append(file);
     }
 
@@ -192,5 +211,7 @@ ModPlatform::IndexedVersion FlameMod::loadDependencyVersions(const ModPlatform::
         return a.date > b.date;
     };
     std::sort(versions.begin(), versions.end(), orderSortPredicate);
-    return versions.front();
-};
+    if (versions.size() != 0)
+        return versions.front();
+    return {};
+}
diff --git a/launcher/modplatform/flame/FlameModIndex.h b/launcher/modplatform/flame/FlameModIndex.h
index aa0d6f81..1bcaa44b 100644
--- a/launcher/modplatform/flame/FlameModIndex.h
+++ b/launcher/modplatform/flame/FlameModIndex.h
@@ -19,5 +19,5 @@ void loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
                              const shared_qobject_ptr<QNetworkAccessManager>& network,
                              const BaseInstance* inst);
 auto loadIndexedPackVersion(QJsonObject& obj, bool load_changelog = false) -> ModPlatform::IndexedVersion;
-auto loadDependencyVersions(const ModPlatform::Dependency& m, QJsonArray& arr) -> ModPlatform::IndexedVersion;
+auto loadDependencyVersions(const ModPlatform::Dependency& m, QJsonArray& arr, const BaseInstance* inst) -> ModPlatform::IndexedVersion;
 }  // namespace FlameMod
\ No newline at end of file
diff --git a/launcher/modplatform/flame/FlamePackExportTask.cpp b/launcher/modplatform/flame/FlamePackExportTask.cpp
index 6cfc078a..d86d34bf 100644
--- a/launcher/modplatform/flame/FlamePackExportTask.cpp
+++ b/launcher/modplatform/flame/FlamePackExportTask.cpp
@@ -383,6 +383,7 @@ QByteArray FlamePackExportTask::generateIndex()
         const ComponentPtr quilt = profile->getComponent("org.quiltmc.quilt-loader");
         const ComponentPtr fabric = profile->getComponent("net.fabricmc.fabric-loader");
         const ComponentPtr forge = profile->getComponent("net.minecraftforge");
+        const ComponentPtr neoforge = profile->getComponent("net.neoforged");
 
         // convert all available components to mrpack dependencies
         if (minecraft != nullptr)
@@ -394,6 +395,8 @@ QByteArray FlamePackExportTask::generateIndex()
             id = "fabric-" + fabric->getVersion();
         else if (forge != nullptr)
             id = "forge-" + forge->getVersion();
+        else if (neoforge != nullptr)
+            id = "neoforge-" + neoforge->getVersion();
         version["modLoaders"] = QJsonArray();
         if (!id.isEmpty()) {
             QJsonObject loader;