diff --git a/scripts/common.mak b/scripts/common.mak
index 0325296..ea06da2 100644
--- a/scripts/common.mak
+++ b/scripts/common.mak
@@ -1,35 +1,19 @@
-export lsproj = $(bin)/lsproj$(exe)
+export lsdep = $(bin)/lsdep$(exe)
 export lsinc = $(bin)/lsinc$(exe)
 export flags += "-I$(inc)" -D$(OS) -DPPC_VERSION_MAJOR=$(version-major) -DPPC_VERSION_MINOR=$(version-minor) -DPPC_VERSION_BUILD=$(version-build)
 
-$(shell make -f scripts/ls.mak lsinc=$(lsinc) lsproj=$(lsproj) src=$(src) "flags=$(flags)" all)
+$(shell make -f scripts/ls.mak lsinc=$(lsinc) lsdep=$(lsdep) src=$(src) "flags=$(flags)" all)
 
 rwildcard=$(foreach d, $(wildcard $(1:=/*)),\
 	$(call rwildcard,$d,$2)\
 	$(filter $(subst *,%,$2),$d)\
 )
 
-uniq=$(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
-modoutput=$(shell ./$(lsproj) $(src) $1 output)
-deps=$(strip \
-	$(foreach dep, $(shell ./$(lsproj) $(src) $1 deps),\
-		$(if $(wildcard src/$(dep)), $(dep),\
-			$(error The module '$(dep)' (dependency of '$1') doesn't exist)\
-		)\
-	)\
-)
-rdeps=$(call uniq,$(strip \
-	$(foreach dep, $(call deps,$1),\
-		$(call rdeps,$(dep))\
-		$(dep)\
-	)\
-))
+deps=$(shell $(lsdep) --dir=deps $1)
+rdeps=$(shell $(lsdep) --dir=deps --rec $1)
 
-fdeps=$(foreach dep,$(call deps,$1),$(bin)/lib$(lib)$(call modoutput,$(dep))$(so))
-frdeps=$(foreach dep,$(call rdeps,$1),$(bin)/lib$(lib)$(call modoutput,$(dep))$(so))
-
-ldeps=$(foreach dep,$(call deps,$1),-l$(lib)$(call modoutput,$(dep)))
-lrdeps=$(foreach dep,$(call rdeps,$1),-l$(lib)$(call modoutput,$(dep)))
+frdeps=$(shell $(lsdep) --dir=deps --rec --transform=$(bin)/lib$(lib)*$(so) $1)
+ldeps=$(shell $(lsdep) --dir=deps --transform=-l$(lib) $1)
 
 modules = $(patsubst $(src)/%/,$(bin)/lib$(lib)%$(so),$(filter-out $(src)/$(mainmodule)/,$(wildcard $(src)/*/)))
 sources = $(call rwildcard,$(src)/$1,*.cc)
diff --git a/scripts/ls.mak b/scripts/ls.mak
index 0d4e125..c6316fa 100644
--- a/scripts/ls.mak
+++ b/scripts/ls.mak
@@ -1,9 +1,11 @@
-all: $(lsproj) $(lsinc)
+all: $(lsdep) $(lsinc)
 
-$(lsproj): $(src)/lsproj.cc
+$(lsdep): $(src)/lsdep.cc
 	$(call mkdir,$(dir $@))
+	echo - Compiling lsdep.cc... >&2
 	$(CXX) $(flags) $^ -o $@
 	
 $(lsinc): $(src)/lsinc.cc
+	echo - Compiling lsinc.cc... >&2
 	$(call mkdir,$(dir $@))
 	$(CXX) $(flags) $^ -o $@
\ No newline at end of file
diff --git a/src/lang.proj b/src/lang.proj
deleted file mode 100644
index 3151a2d..0000000
--- a/src/lang.proj
+++ /dev/null
@@ -1,2 +0,0 @@
-lang
-utils
\ No newline at end of file
diff --git a/src/lsdep.cc b/src/lsdep.cc
new file mode 100644
index 0000000..167dd30
--- /dev/null
+++ b/src/lsdep.cc
@@ -0,0 +1,146 @@
+#include <fstream>
+#include <iostream>
+#include <vector>
+#include <set>
+#include <string>
+#include <filesystem>
+#include <algorithm>
+
+using namespace std::string_literals;
+using std::size_t;
+namespace fs = std::filesystem;
+
+fs::path proj_dir;
+bool recursive = false;
+std::string prefix = "", suffix = "";
+
+static inline void ltrim(std::string &s) {
+    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }));
+}
+static inline void rtrim(std::string &s) {
+    s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }).base(), s.end());
+}
+static inline void trim(std::string &s) {
+    rtrim(s);
+    ltrim(s);
+}
+static bool read_line(std::istream &str, std::string &res) {
+    if (str.eof()) return false;
+    std::getline(str, res);
+    trim(res);
+    return true;
+}
+
+void read_project_rec(const std::string &name, std::set<std::string> &res, bool rec = false) {
+    static std::set<std::string> prev;
+
+    if (!prev.emplace(name).second) throw name + ": Circular dependency detected.";
+
+    std::ifstream f(proj_dir / name);
+    std::string line;
+
+    while (read_line(f, line)) {
+        if (line.find('#') != std::string::npos) {
+            line = line.substr(0, line.find('#'));
+        }
+
+        trim(line);
+
+        if (line.size() == 0) continue;
+        if (line == name) throw name + ": Depends on itself.";
+
+        res.emplace(line);
+        if (rec) read_project_rec(line, res);
+    }
+
+    prev.erase(name);
+}
+
+void print_err(const std::string &error, const std::string &context) {
+    std::cerr << context << ": " << error;
+}
+
+void set_transform(const std::string &val) {
+    size_t i = 0;
+    bool last_percent = false;
+    bool is_prefix = true;
+    prefix = "", suffix = "";
+
+    for (; i < val.length(); i++) {
+        if (is_prefix) {
+            if (val[i] == '*') {
+                if (last_percent) {
+                    last_percent = false;
+                }
+                else {
+                    last_percent = true;
+                    continue;
+                }
+            }
+            else if (last_percent) {
+                is_prefix = false;
+                last_percent = false;
+            }
+        }
+
+        if (is_prefix) prefix += val[i];
+        else suffix += val[i];
+    }
+}
+
+bool process_arg(std::string arg) {
+    if (arg.find("--") != 0) return false;
+    arg = arg.substr(2);
+
+    if (arg == "rec") {
+        recursive = true;
+        return true;
+    }
+    else if (arg.find("transform=") == 0) {
+        arg = arg.substr(10);
+        set_transform(arg);
+    }
+    else if (arg.find("dir=") == 0) {
+        arg = arg.substr(4);
+        proj_dir = arg;
+    }
+    else {
+        throw "Incorrect usage. Syntax: [--rec] [--transform=prefix%suffix] [--dir=dir] [projects...]"s;
+    }
+    return true;
+}
+
+int main(int argc, const char *argv[]) {
+    try {
+        argc--;
+        argv++;
+
+        std::set<std::string> deps;
+
+        while (argc > 0 && process_arg(argv[0])) {
+            argc--;
+            argv++;
+        }
+        while (argc > 0) {
+            // if (recursive) read_project_rec(argv[0], deps);
+            // else read_project(argv[0], deps);
+            read_project_rec(argv[0], deps, recursive);
+            argc--;
+            argv++;
+        }
+
+        for (auto &dep : deps) {
+            std::cout << prefix + dep + suffix << std::endl;
+        }
+
+        return 0;
+    }
+    catch (std::string err) {
+        std::cerr << "error: lsdep: " << err << std::endl;
+    }
+    return -1;
+}
diff --git a/src/lsinc.cc b/src/lsinc.cc
index b1e82cf..003a3ea 100644
--- a/src/lsinc.cc
+++ b/src/lsinc.cc
@@ -108,7 +108,7 @@ int main(int argc, char **argv) {
         return 0;
     }
     catch (std::string err) {
-        std::cerr << "Error: " << err << std::endl;
+        std::cerr << "error: lsinc: " << err << std::endl;
     }
 
     return -1;
diff --git a/src/lsproj.cc b/src/lsproj.cc
deleted file mode 100644
index 7579810..0000000
--- a/src/lsproj.cc
+++ /dev/null
@@ -1,138 +0,0 @@
-#include <fstream>
-#include <iostream>
-#include <vector>
-#include <string>
-
-using namespace std::string_literals;
-
-struct project_t {
-    std::string output;
-    std::vector<std::string> deps;
-};
-
-std::string read_str(std::istream &f, const std::string &skip_chars, const std::string &end_chars, int &end_char) {
-    std::vector<char> res {};
-    int c;
-
-    while (true) {
-        c = f.get();
-        auto a = end_chars.find(c);
-        if (c == -1 || a != std::string::npos) {
-            end_char = c;
-            return "";
-        }
-        if ((a = skip_chars.find(c)) == std::string::npos) {
-            f.unget();
-            break;
-        }
-    }
-
-    while (true) {
-        c = f.get();
-        if (c == -1 || end_chars.find(c) != std::string::npos) {
-            end_char = c;
-            break;
-        }
-
-        res.push_back(c);
-    }
-    while (true) {
-        if (skip_chars.find(res.back()) != std::string::npos) res.pop_back();
-        else break;
-    }
-
-    return std::string { res.begin(), res.end() };
-}
-std::string read_str(std::istream &f, const std::string &skip_chars, const std::string &end_chars) {
-    int end_char;
-    return read_str(f, skip_chars, end_chars, end_char);
-}
-
-project_t read_project(std::istream &f) {
-    int end_ch;
-    std::string name = read_str(f, " \v\t\r\n", "\n", end_ch);
-    std::vector<std::string> deps {};
-
-    if (name.length() == 0) {
-        throw "The name of a project may not be empty."s;
-    }
-
-    if (end_ch == -1) {
-        return project_t {
-            .output = name,
-            .deps = deps,
-        };
-    }
-
-    if (name.find(',') != std::string::npos || name.find(' ') != std::string::npos) {
-        throw "The name of a project may not contain spaces or commas."s;
-    }
-
-    while (true) {
-        std::string dep = read_str(f, " \v\t\r\n", ",\n", end_ch);
-
-        if (dep.find(' ') != std::string::npos) {
-            throw "The name of a dependency may not contain spaces."s;
-        }
-
-        if (dep.length()) {
-            deps.push_back(dep);
-            if (end_ch == '\n') break;
-        }
-        if (end_ch == -1) break;
-    }
-
-    return project_t {
-        .output = name,
-        .deps = deps,
-    };
-}
-
-void print_err(const std::string &error, const std::string &context) {
-    std::cerr << context << ": " << error;
-}
-
-int main(int argc, const char *argv[]) {
-    std::string proj_name = "";
-    try {
-        argc--;
-        argv++;
-
-        if (argc != 3) {
-            throw "Incorrect usage. Syntax: [src-dir] [project-name] [output|deps]."s;
-        }
-
-        std::string proj_path = (std::string) argv[0] + "/" + argv[1] + ".proj";
-        proj_name = argv[1];
-
-        std::ifstream f { proj_path, std::ios_base::in };
-
-        if (!f.is_open()) {
-            throw "The project '"s + argv[1] + "' doesn't exist."s;
-        }
-
-        project_t project = read_project(f);
-        f.close();
-
-        if ((std::string) argv[2] == "output") {
-            std::cout << project.output;
-        }
-        else if ((std::string) argv[2] == "deps") {
-            for (std::string dep : project.deps) {
-                std::cout << dep << " ";
-            }
-        }
-        else {
-            throw "Invalid command given. Available commands: output, deps."s;
-        }
-
-        std::cout << std::endl;
-
-        return 0;
-    }
-    catch (std::string err) {
-        if (proj_name.length()) std::cerr << "Error: " << proj_name << ": " << err << std::endl;
-        else std::cerr << "Error: " << err << std::endl;
-    }
-    return -1;
-}
diff --git a/src/main.proj b/src/main.proj
deleted file mode 100644
index 3b14ac7..0000000
--- a/src/main.proj
+++ /dev/null
@@ -1,2 +0,0 @@
-main
-utils, treeifier, lang
\ No newline at end of file
diff --git a/src/treeifier.proj b/src/treeifier.proj
deleted file mode 100644
index d34bf8b..0000000
--- a/src/treeifier.proj
+++ /dev/null
@@ -1,2 +0,0 @@
-treeifier
-utils, lang
\ No newline at end of file
diff --git a/src/utils.proj b/src/utils.proj
deleted file mode 100644
index 6625243..0000000
--- a/src/utils.proj
+++ /dev/null
@@ -1 +0,0 @@
-utils
\ No newline at end of file