diff --git a/Cargo.toml b/Cargo.toml
index 9f9b914..7624c7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,21 +1,7 @@
-[package]
-name = "reactionsystems"
-version = "0.1.0"
-edition = "2024"
+[workspace]
+resolver = "3"
+members = [ "analysis", "assert", "bisimilarity", "execution","grammar", "rsprocess"]
 exclude = ["*.system", "*.experiment", "/testing/", "*.serial", "*.dot", "*.trace", "*.svg"]
 
-[build-dependencies]
-lalrpop = "0.22"
-
-[dependencies]
-rand = { version = "*" }
-colored = { version = "*" }
-regex = { version = "1", features = ["unicode-bool"] }
-lalrpop-util = { version = "*", features = ["lexer", "unicode"] }
-petgraph = { version = "*", features = ["serde-1"] }
-petgraph-graphml = { version = "5" }
-serde = { version = "1", features = ["derive", "rc"] }
-serde_cbor_2 = { version = "*" }
-
 [profile.dev]
 split-debuginfo = "unpacked"
diff --git a/analysis/Cargo.toml b/analysis/Cargo.toml
new file mode 100644
index 0000000..781b0f7
--- /dev/null
+++ b/analysis/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "analysis"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+rsprocess = { path = "../rsprocess/" }
+execution = { path = "../execution/" }
+grammar = { path = "../grammar/" }
+colored = { version = "*" }
+lalrpop-util = { version = "*", features = ["lexer", "unicode"] }
diff --git a/analysis/src/helper.rs b/analysis/src/helper.rs
new file mode 100644
index 0000000..9e33a8e
--- /dev/null
+++ b/analysis/src/helper.rs
@@ -0,0 +1,113 @@
+use execution::presets;
+use lalrpop_util::ParseError;
+use std::fmt::Display;
+use grammar::grammar;
+
+pub struct Parsers {}
+
+impl presets::FileParsers for Parsers {
+    fn parse_experiment(
+        translator: &mut rsprocess::translator::Translator,
+        contents: String,
+    ) -> Result<(Vec<u32>, Vec<rsprocess::set::Set>), String> {
+        match grammar::ExperimentParser::new().parse(translator, &contents) {
+            | Ok(sys) => Ok(sys),
+            | Err(e) => reformat_error(e, &contents),
+        }
+    }
+
+    fn parse_instructions(
+        translator: &mut rsprocess::translator::Translator,
+        contents: String,
+    ) -> Result<presets::Instructions, String> {
+        match grammar::RunParser::new().parse(translator, &contents) {
+            | Ok(sys) => Ok(sys),
+            | Err(e) => reformat_error(e, &contents),
+        }
+    }
+}
+
+fn reformat_error<T, S>(
+    e: ParseError<usize, T, &'static str>,
+    input_str: &str,
+) -> Result<S, String>
+where
+    T: Display,
+{
+    match e {
+        | ParseError::ExtraToken { token: (l, t, r) } => Err(format!(
+            "Unexpected token \"{t}\" between positions {l} and {r}."
+        )),
+        | ParseError::UnrecognizedEof {
+            location: _,
+            expected: _,
+        } => Err("End of file encountered while parsing.".into()),
+        | ParseError::InvalidToken { location } =>
+            Err(format!("Invalid token at position {location}.")),
+        | ParseError::UnrecognizedToken {
+            token: (l, t, r),
+            expected,
+        } => {
+            use colored::Colorize;
+
+            let mut err = format!(
+                "Unrecognized token {}{}{} \
+                 between positions {l} and {r}.",
+                "\"".red(),
+                t.to_string().red(),
+                "\"".red(),
+            );
+
+            // Temporary debug.
+            err.push_str("\nExpected: ");
+            let mut it = expected.iter().peekable();
+            while let Some(s) = it.next() {
+                err.push('(');
+                err.push_str(&format!("{}", s.green()));
+                err.push(')');
+                if it.peek().is_some() {
+                    err.push(',');
+                    err.push(' ');
+                }
+            }
+            let right_new_line = input_str[l..]
+                .find("\n")
+                .map(|pos| pos + l)
+                .unwrap_or(input_str.len());
+            let left_new_line = input_str[..r]
+                .rfind("\n")
+                .map(|pos| pos + 1)
+                .unwrap_or_default();
+
+            let line_number = input_str[..l].match_indices('\n').count() + 1;
+            let pre_no_color = format!("{line_number} |");
+            let pre = format!("{}", pre_no_color.blue());
+
+            let line_pos_l = l - left_new_line;
+            let line_pos_r = r - left_new_line;
+
+            err.push_str(&format!(
+                "\nLine {} position {} to {}:\n{}{}{}{}",
+                line_number,
+                line_pos_l,
+                line_pos_r,
+                &pre,
+                &input_str[left_new_line..l].green(),
+                &input_str[l..r].red(),
+                &input_str[r..right_new_line],
+            ));
+            err.push('\n');
+            err.push_str(&" ".repeat(pre_no_color.len() - 1));
+            err.push_str(&format!("{}", "|".blue()));
+            err.push_str(&" ".repeat(l - left_new_line));
+            err.push_str(&format!("{}", &"↑".red()));
+            if r - l > 2 {
+                err.push_str(&" ".repeat(r - l - 2));
+                err.push_str(&format!("{}", &"↑".red()));
+            }
+
+            Err(err)
+        },
+        | ParseError::User { error } => Err(error.to_string()),
+    }
+}
diff --git a/src/main.rs b/analysis/src/main.rs
similarity index 77%
rename from src/main.rs
rename to analysis/src/main.rs
index b394916..06d49b3 100644
--- a/src/main.rs
+++ b/analysis/src/main.rs
@@ -1,5 +1,7 @@
+mod helper;
+
 fn main() {
-    use reactionsystems::rsprocess::presets;
+    use execution::presets;
 
     let mut input = String::new();
     std::io::stdin().read_line(&mut input).unwrap();
@@ -7,7 +9,7 @@ fn main() {
 
     let now = std::time::Instant::now();
 
-    match presets::run(input) {
+    match presets::run::<helper::Parsers>(input) {
         | Ok(()) => {},
         | Err(e) => println!("{e}"),
     }
diff --git a/assert/Cargo.toml b/assert/Cargo.toml
new file mode 100644
index 0000000..ddecf5b
--- /dev/null
+++ b/assert/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "assert"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+rand = { version = "*" }
+rsprocess = { path = "../rsprocess/" }
+petgraph = { version = "*", features = ["serde-1"] }
+petgraph-graphml = { version = "*" }
diff --git a/src/rsprocess/assert/dsl.rs b/assert/src/dsl.rs
similarity index 99%
rename from src/rsprocess/assert/dsl.rs
rename to assert/src/dsl.rs
index 2b7e428..38e20f5 100644
--- a/src/rsprocess/assert/dsl.rs
+++ b/assert/src/dsl.rs
@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 
-use super::super::set::BasicSet;
-use super::super::{element, graph, label, process, set, system, translator};
+use rsprocess::set::BasicSet;
+use rsprocess::{element, graph, label, process, set, system, translator};
 
 /// If changing IntegerType in assert.rs, also change from Num to another
 /// similar parser with different return type in grammar.lalrpop in
diff --git a/src/rsprocess/assert/fmt.rs b/assert/src/fmt.rs
similarity index 99%
rename from src/rsprocess/assert/fmt.rs
rename to assert/src/fmt.rs
index 9501c7b..1a6f32d 100644
--- a/src/rsprocess/assert/fmt.rs
+++ b/assert/src/fmt.rs
@@ -3,7 +3,7 @@
 // -----------------------------------------------------------------------------
 use std::fmt;
 
-use super::super::translator::{
+use rsprocess::translator::{
     Formatter, PrintableWithTranslator, Translator,
 };
 use super::dsl::*;
diff --git a/src/rsprocess/assert/mod.rs b/assert/src/lib.rs
similarity index 100%
rename from src/rsprocess/assert/mod.rs
rename to assert/src/lib.rs
diff --git a/src/rsprocess/assert/rsassert.rs b/assert/src/rsassert.rs
similarity index 98%
rename from src/rsprocess/assert/rsassert.rs
rename to assert/src/rsassert.rs
index db6236e..16926a3 100644
--- a/src/rsprocess/assert/rsassert.rs
+++ b/assert/src/rsassert.rs
@@ -1,8 +1,8 @@
 use std::collections::HashMap;
 
-use super::super::{graph, label, set, system, translator};
 use super::dsl::*;
-use crate::rsprocess::translator::PrintableWithTranslator;
+use rsprocess::{graph, label, set, system, translator};
+use rsprocess::translator::PrintableWithTranslator;
 
 // ----------------------------------------------------------------------------
 //                       Specific Assert Implementation
diff --git a/src/rsprocess/assert/tests.rs b/assert/src/tests.rs
similarity index 99%
rename from src/rsprocess/assert/tests.rs
rename to assert/src/tests.rs
index 38ca9ac..8f58f98 100644
--- a/src/rsprocess/assert/tests.rs
+++ b/assert/src/tests.rs
@@ -1,4 +1,4 @@
-use super::super::{environment, label, process, set, system, translator};
+use rsprocess::{environment, label, process, set, system, translator};
 use super::dsl::*;
 use super::rsassert::*;
 
diff --git a/bisimilarity/Cargo.toml b/bisimilarity/Cargo.toml
new file mode 100644
index 0000000..b1a15ad
--- /dev/null
+++ b/bisimilarity/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "bisimilarity"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+petgraph = { version = "0.8", features = ["serde-1"] }
diff --git a/src/rsprocess/bisimilarity/bisimilarity_kanellakis_smolka.rs b/bisimilarity/src/bisimilarity_kanellakis_smolka.rs
similarity index 100%
rename from src/rsprocess/bisimilarity/bisimilarity_kanellakis_smolka.rs
rename to bisimilarity/src/bisimilarity_kanellakis_smolka.rs
diff --git a/src/rsprocess/bisimilarity/bisimilarity_paige_tarkan.rs b/bisimilarity/src/bisimilarity_paige_tarkan.rs
similarity index 100%
rename from src/rsprocess/bisimilarity/bisimilarity_paige_tarkan.rs
rename to bisimilarity/src/bisimilarity_paige_tarkan.rs
diff --git a/src/rsprocess/bisimilarity/mod.rs b/bisimilarity/src/lib.rs
similarity index 100%
rename from src/rsprocess/bisimilarity/mod.rs
rename to bisimilarity/src/lib.rs
diff --git a/src/rsprocess/bisimilarity/test_kenallakis_smolka.rs b/bisimilarity/src/test_kenallakis_smolka.rs
similarity index 100%
rename from src/rsprocess/bisimilarity/test_kenallakis_smolka.rs
rename to bisimilarity/src/test_kenallakis_smolka.rs
diff --git a/src/rsprocess/bisimilarity/test_paige_tarjan.rs b/bisimilarity/src/test_paige_tarjan.rs
similarity index 100%
rename from src/rsprocess/bisimilarity/test_paige_tarjan.rs
rename to bisimilarity/src/test_paige_tarjan.rs
diff --git a/build.rs b/build.rs
index 7e68f91..cea3401 100644
--- a/build.rs
+++ b/build.rs
@@ -1,3 +1,3 @@
 fn main() {
-    lalrpop::process_src().unwrap();
+    // lalrpop::process_src().unwrap();
 }
diff --git a/execution/Cargo.toml b/execution/Cargo.toml
new file mode 100644
index 0000000..5288773
--- /dev/null
+++ b/execution/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "execution"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+rsprocess = { path = "../rsprocess/" }
+assert = { path = "../assert/" }
+bisimilarity = { path = "../bisimilarity/" }
+colored = { version = "*" }
+petgraph = { version = "0.8", features = ["serde-1"] }
+petgraph-graphml = { version = "*" }
+lalrpop-util = { version = "*", features = ["lexer", "unicode"] }
diff --git a/execution/src/data.rs b/execution/src/data.rs
new file mode 100644
index 0000000..83f87d7
--- /dev/null
+++ b/execution/src/data.rs
@@ -0,0 +1,63 @@
+use rsprocess::translator;
+use rsprocess::system::System;
+use rsprocess::label::Label;
+use rsprocess::graph::SystemGraph;
+use petgraph::{Graph, Directed};
+
+// -----------------------------------------------------------------------------
+//                              helper functions
+// -----------------------------------------------------------------------------
+
+/// Very inelegant way to provide our graph with a map method where the edges
+/// are mapped until the first error.
+pub trait MapEdges<'a, N: 'a, E, Ty, Ix>
+where
+    Ty: petgraph::EdgeType,
+    Ix: petgraph::graph::IndexType,
+{
+    fn map_edges(
+        &self,
+        edge_map: &assert::relabel::Assert,
+        translator: &mut translator::Translator,
+    ) -> Result<
+        Graph<System, assert::relabel::AssertReturnValue, Ty, Ix>,
+        String,
+    >;
+}
+
+impl<'a> MapEdges<'a, System, Label, Directed, u32> for SystemGraph {
+    fn map_edges(
+        &self,
+        edge_map: &assert::relabel::Assert,
+        translator: &mut translator::Translator,
+    ) -> Result<
+        Graph<System, assert::relabel::AssertReturnValue, Directed, u32>,
+        String,
+    > {
+        use petgraph::graph::EdgeIndex;
+
+        let mut g = Graph::with_capacity(self.node_count(), self.edge_count());
+        let nodes = self.raw_nodes();
+        let edges = self.raw_edges();
+
+        let edges = edges
+            .iter()
+            .enumerate()
+            .map(|(i, edge)| {
+                match edge_map.execute(self, &EdgeIndex::new(i), translator) {
+                    | Err(e) => Err(e),
+                    | Ok(val) => Ok((edge.source(), edge.target(), val)),
+                }
+            })
+            .collect::<Result<Vec<_>, _>>()?;
+        nodes.iter().for_each(|node| {
+            g.add_node(node.weight.clone());
+        });
+
+        edges.into_iter().for_each(|(source, target, v)| {
+            g.add_edge(source, target, v);
+        });
+
+        Ok(g)
+    }
+}
diff --git a/execution/src/lib.rs b/execution/src/lib.rs
new file mode 100644
index 0000000..9527caf
--- /dev/null
+++ b/execution/src/lib.rs
@@ -0,0 +1,2 @@
+pub mod data;
+pub mod presets;
diff --git a/src/rsprocess/presets.rs b/execution/src/presets.rs
similarity index 85%
rename from src/rsprocess/presets.rs
rename to execution/src/presets.rs
index 02f7115..bf9ac04 100644
--- a/src/rsprocess/presets.rs
+++ b/execution/src/presets.rs
@@ -1,20 +1,30 @@
 //! Module that holds useful presets for interacting with other modules.
-
 use std::collections::HashMap;
-use std::fmt::Display;
 use std::io::prelude::*;
 use std::rc::Rc;
 use std::{env, fs, io};
 
-use lalrpop_util::ParseError;
 use petgraph::Graph;
 
-use super::super::grammar;
-use super::graph::MapEdges;
-use super::set::Set;
-use super::system::ExtensionsSystem;
-use super::translator::Translator;
-use super::*;
+use crate::data::MapEdges;
+use rsprocess::set::Set;
+use rsprocess::system::ExtensionsSystem;
+use rsprocess::translator::Translator;
+use rsprocess::*;
+
+// -----------------------------------------------------------------------------
+
+pub trait FileParsers {
+    fn parse_experiment(
+        translator: &mut Translator,
+        contents: String,
+    ) -> Result<(Vec<u32>, Vec<Set>), String>;
+
+    fn parse_instructions(
+        translator: &mut Translator,
+        contents: String,
+    ) -> Result<Instructions, String>;
+}
 
 // -----------------------------------------------------------------------------
 //                                 Structures
@@ -207,112 +217,6 @@ where
     Ok(result)
 }
 
-fn reformat_error<T, S>(
-    e: ParseError<usize, T, &'static str>,
-    input_str: &str,
-) -> Result<S, String>
-where
-    T: Display,
-{
-    match e {
-        | ParseError::ExtraToken { token: (l, t, r) } => Err(format!(
-            "Unexpected token \"{t}\" \
-         between positions {l} and {r}."
-        )),
-        | ParseError::UnrecognizedEof {
-            location: _,
-            expected: _,
-        } => Err("End of file encountered while parsing.".into()),
-        | ParseError::InvalidToken { location } =>
-            Err(format!("Invalid token at position {location}.")),
-        | ParseError::UnrecognizedToken {
-            token: (l, t, r),
-            expected,
-        } => {
-            use colored::Colorize;
-
-            let mut err = format!(
-                "Unrecognized token {}{}{} \
-                 between positions {l} and {r}.",
-                "\"".red(),
-                t.to_string().red(),
-                "\"".red(),
-            );
-
-            // Temporary debug.
-            err.push_str("\nExpected: ");
-            let mut it = expected.iter().peekable();
-            while let Some(s) = it.next() {
-                err.push('(');
-                err.push_str(&format!("{}", s.green()));
-                err.push(')');
-                if it.peek().is_some() {
-                    err.push(',');
-                    err.push(' ');
-                }
-            }
-            let right_new_line = input_str[l..]
-                .find("\n")
-                .map(|pos| pos + l)
-                .unwrap_or(input_str.len());
-            let left_new_line = input_str[..r]
-                .rfind("\n")
-                .map(|pos| pos + 1)
-                .unwrap_or_default();
-
-            let line_number = input_str[..l].match_indices('\n').count() + 1;
-            let pre_no_color = format!("{line_number} |");
-            let pre = format!("{}", pre_no_color.blue());
-
-            let line_pos_l = l - left_new_line;
-            let line_pos_r = r - left_new_line;
-
-            err.push_str(&format!(
-                "\nLine {} position {} to {}:\n{}{}{}{}",
-                line_number,
-                line_pos_l,
-                line_pos_r,
-                &pre,
-                &input_str[left_new_line..l].green(),
-                &input_str[l..r].red(),
-                &input_str[r..right_new_line],
-            ));
-            err.push('\n');
-            err.push_str(&" ".repeat(pre_no_color.len() - 1));
-            err.push_str(&format!("{}", "|".blue()));
-            err.push_str(&" ".repeat(l - left_new_line));
-            err.push_str(&format!("{}", &"↑".red()));
-            if r - l > 2 {
-                err.push_str(&" ".repeat(r - l - 2));
-                err.push_str(&format!("{}", &"↑".red()));
-            }
-
-            Err(err)
-        },
-        | ParseError::User { error } => Err(error.to_string()),
-    }
-}
-
-fn parser_experiment(
-    translator: &mut Translator,
-    contents: String,
-) -> Result<(Vec<u32>, Vec<Set>), String> {
-    match grammar::ExperimentParser::new().parse(translator, &contents) {
-        | Ok(sys) => Ok(sys),
-        | Err(e) => reformat_error(e, &contents),
-    }
-}
-
-fn parser_instructions(
-    translator: &mut Translator,
-    contents: String,
-) -> Result<Instructions, String> {
-    match grammar::RunParser::new().parse(translator, &contents) {
-        | Ok(sys) => Ok(sys),
-        | Err(e) => reformat_error(e, &contents),
-    }
-}
-
 fn save_file(contents: &String, path_string: String) -> Result<(), String> {
     // relative path
     let mut path = match env::current_dir() {
@@ -475,10 +379,14 @@ pub fn freq(system: &EvaluatedSystem) -> Result<String, String> {
 /// Finds the frequency of each entity in the limit loop of a nonterminating
 /// Reaction System whose context has the form Q1 ... Q1.Q2 ... Q2 ... Qn ...
 /// equivalent to main_do(limitfreq, PairList)
-pub fn limit_freq(
+pub fn limit_freq<F>(
     system: &mut EvaluatedSystem,
     experiment: String,
-) -> Result<String, String> {
+    parser_experiment: F,
+) -> Result<String, String>
+where
+    F: Fn(&mut Translator, String) -> Result<(Vec<u32>, Vec<Set>), String>
+{
     use frequency::BasicFrequency;
 
     let (sys, translator): (&system::System, &mut Translator) = match system {
@@ -515,10 +423,14 @@ pub fn limit_freq(
 /// Q1 ... Q1.Q2 ... Q2 ... Qn ... Qn.nil and each Qi is repeated Wi times
 /// read from a corresponding file.
 /// equivalent to main_do(fastfreq, PairList)
-pub fn fast_freq(
+pub fn fast_freq<F>(
     system: &mut EvaluatedSystem,
     experiment: String,
-) -> Result<String, String> {
+    parser_experiment: F,
+) -> Result<String, String>
+where
+    F: Fn(&mut Translator, String) -> Result<(Vec<u32>, Vec<Set>), String>
+{
     use frequency::BasicFrequency;
 
     let (sys, translator): (&system::System, &mut Translator) = match system {
@@ -618,11 +530,15 @@ pub fn grouping(
 }
 
 /// Computes bisimularity of two provided systems
-pub fn bisimilar(
+pub fn bisimilar<F>(
     system_a: &mut EvaluatedSystem,
     edge_relabeler: &assert::relabel::Assert,
     system_b: String,
-) -> Result<String, String> {
+    parser_instructions: F
+) -> Result<String, String>
+where
+    F: Fn(&mut Translator, String) -> Result<Instructions, String>
+{
     use assert::relabel::AssertReturnValue;
 
     let system_b = read_file(
@@ -834,7 +750,7 @@ macro_rules! save_options {
     };
 }
 
-fn execute(
+fn execute<P: FileParsers>(
     instruction: Instruction,
     system: &mut EvaluatedSystem,
 ) -> Result<(), String> {
@@ -855,10 +771,10 @@ fn execute(
             save_options!(freq(system)?, so);
         },
         | Instruction::LimitFrequency { experiment, so } => {
-            save_options!(limit_freq(system, experiment)?, so);
+            save_options!(limit_freq(system, experiment, P::parse_experiment)?, so);
         },
         | Instruction::FastFrequency { experiment, so } => {
-            save_options!(fast_freq(system, experiment)?, so);
+            save_options!(fast_freq(system, experiment, P::parse_experiment)?, so);
         },
         | Instruction::Digraph { group, gso } => {
             digraph(system)?;
@@ -898,7 +814,7 @@ fn execute(
             so,
         } => {
             edge_relabeler.typecheck()?;
-            save_options!(bisimilar(system, &edge_relabeler, system_b)?, so);
+            save_options!(bisimilar(system, &edge_relabeler, system_b, P::parse_instructions)?, so);
         },
     }
     Ok(())
@@ -906,18 +822,22 @@ fn execute(
 
 /// Interprets file at supplied path, then executes the code specified as
 /// instructions inside the file.
-pub fn run(path: String) -> Result<(), String> {
+pub fn run<P: FileParsers>(
+    path: String,
+) -> Result<(), String> {
     let mut translator = Translator::new();
 
     let Instructions {
         system,
         instructions,
-    } = read_file(&mut translator, path, parser_instructions)?;
+    } = read_file(&mut translator,
+                  path,
+                  P::parse_instructions)?;
 
     let mut system = system.compute(translator)?;
 
     for instr in instructions {
-        execute(instr, &mut system)?;
+        execute::<P>(instr, &mut system)?;
     }
 
     Ok(())
diff --git a/grammar/Cargo.toml b/grammar/Cargo.toml
new file mode 100644
index 0000000..6fc219d
--- /dev/null
+++ b/grammar/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "grammar"
+version = "0.1.0"
+edition = "2024"
+
+[build-dependencies]
+lalrpop = "*"
+
+[dependencies]
+rsprocess = { path = "../rsprocess/" }
+assert = { path = "../assert/" }
+execution = { path = "../execution/" }
+regex = { version = "*", features = ["unicode-bool"] }
+lalrpop-util = { version = "*", features = ["lexer", "unicode"] }
diff --git a/grammar/build.rs b/grammar/build.rs
new file mode 100644
index 0000000..7e68f91
--- /dev/null
+++ b/grammar/build.rs
@@ -0,0 +1,3 @@
+fn main() {
+    lalrpop::process_src().unwrap();
+}
diff --git a/src/rsprocess/grammar.lalrpop b/grammar/src/grammar.lalrpop
similarity index 99%
rename from src/rsprocess/grammar.lalrpop
rename to grammar/src/grammar.lalrpop
index d6cb5cd..ba370af 100644
--- a/src/rsprocess/grammar.lalrpop
+++ b/grammar/src/grammar.lalrpop
@@ -1,12 +1,13 @@
 use std::rc::Rc;
 use std::str::FromStr;
 use lalrpop_util::ParseError;
-use crate::rsprocess::{set, reaction, process, environment, system, label};
-use crate::rsprocess::element::IdType;
-use crate::rsprocess::translator::Translator;
-use crate::rsprocess::presets;
-use crate::rsprocess::assert::{relabel, grouping};
-use crate::rsprocess::graph;
+
+use assert::{relabel, grouping};
+use rsprocess::{set, reaction, process, environment, system, label};
+use rsprocess::element::IdType;
+use rsprocess::translator::Translator;
+use execution::presets;
+use rsprocess::graph;
 
 grammar(translator: &mut Translator);
 
diff --git a/src/lib.rs b/grammar/src/lib.rs
similarity index 54%
rename from src/lib.rs
rename to grammar/src/lib.rs
index e942550..343b94a 100644
--- a/src/lib.rs
+++ b/grammar/src/lib.rs
@@ -1,8 +1,4 @@
-//! Module root
-
-pub mod rsprocess;
-
 lalrpop_util::lalrpop_mod!(
     #[allow(clippy::uninlined_format_args)] pub grammar, // name of module
-    "/rsprocess/grammar.rs" // location of parser
+    "/grammar.rs" // location of parser
 );
diff --git a/rsprocess/Cargo.toml b/rsprocess/Cargo.toml
new file mode 100644
index 0000000..844e8a5
--- /dev/null
+++ b/rsprocess/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "rsprocess"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+petgraph = { version = "*", features = ["serde-1"] }
+petgraph-graphml = { version = "*" }
+serde = { version = "*", features = ["derive", "rc"] }
+serde_cbor_2 = { version = "*" }
diff --git a/src/rsprocess/choices.rs b/rsprocess/src/choices.rs
similarity index 100%
rename from src/rsprocess/choices.rs
rename to rsprocess/src/choices.rs
diff --git a/src/rsprocess/dot.rs b/rsprocess/src/dot.rs
similarity index 100%
rename from src/rsprocess/dot.rs
rename to rsprocess/src/dot.rs
diff --git a/src/rsprocess/element.rs b/rsprocess/src/element.rs
similarity index 100%
rename from src/rsprocess/element.rs
rename to rsprocess/src/element.rs
diff --git a/src/rsprocess/environment.rs b/rsprocess/src/environment.rs
similarity index 100%
rename from src/rsprocess/environment.rs
rename to rsprocess/src/environment.rs
diff --git a/src/rsprocess/format_helpers.rs b/rsprocess/src/format_helpers.rs
similarity index 100%
rename from src/rsprocess/format_helpers.rs
rename to rsprocess/src/format_helpers.rs
diff --git a/src/rsprocess/frequency.rs b/rsprocess/src/frequency.rs
similarity index 100%
rename from src/rsprocess/frequency.rs
rename to rsprocess/src/frequency.rs
diff --git a/src/rsprocess/graph.rs b/rsprocess/src/graph.rs
similarity index 91%
rename from src/rsprocess/graph.rs
rename to rsprocess/src/graph.rs
index e040966..60a5c51 100644
--- a/src/rsprocess/graph.rs
+++ b/rsprocess/src/graph.rs
@@ -94,63 +94,6 @@ common_label!(
         .intersection(&acc)
 );
 
-// -----------------------------------------------------------------------------
-//                              helper functions
-// -----------------------------------------------------------------------------
-
-/// Very inelegant way to provide our graph with a map method where the edges
-/// are mapped until the first error.
-pub trait MapEdges<'a, N: 'a, E, Ty, Ix>
-where
-    Ty: petgraph::EdgeType,
-    Ix: petgraph::graph::IndexType,
-{
-    fn map_edges(
-        &self,
-        edge_map: &super::assert::relabel::Assert,
-        translator: &mut super::translator::Translator,
-    ) -> Result<
-        Graph<System, super::assert::relabel::AssertReturnValue, Ty, Ix>,
-        String,
-    >;
-}
-
-impl<'a> MapEdges<'a, System, Label, Directed, u32> for SystemGraph {
-    fn map_edges(
-        &self,
-        edge_map: &super::assert::relabel::Assert,
-        translator: &mut super::translator::Translator,
-    ) -> Result<
-        Graph<System, super::assert::relabel::AssertReturnValue, Directed, u32>,
-        String,
-    > {
-        use petgraph::graph::EdgeIndex;
-
-        let mut g = Graph::with_capacity(self.node_count(), self.edge_count());
-        let nodes = self.raw_nodes();
-        let edges = self.raw_edges();
-
-        let edges = edges
-            .iter()
-            .enumerate()
-            .map(|(i, edge)| {
-                match edge_map.execute(self, &EdgeIndex::new(i), translator) {
-                    | Err(e) => Err(e),
-                    | Ok(val) => Ok((edge.source(), edge.target(), val)),
-                }
-            })
-            .collect::<Result<Vec<_>, _>>()?;
-        nodes.iter().for_each(|node| {
-            g.add_node(node.weight.clone());
-        });
-
-        edges.into_iter().for_each(|(source, target, v)| {
-            g.add_edge(source, target, v);
-        });
-
-        Ok(g)
-    }
-}
 
 // Nodes -----------------------------------------------------------------------
 
diff --git a/src/rsprocess/label.rs b/rsprocess/src/label.rs
similarity index 100%
rename from src/rsprocess/label.rs
rename to rsprocess/src/label.rs
diff --git a/src/rsprocess/mod.rs b/rsprocess/src/lib.rs
similarity index 86%
rename from src/rsprocess/mod.rs
rename to rsprocess/src/lib.rs
index 2141fea..51b0f13 100644
--- a/src/rsprocess/mod.rs
+++ b/rsprocess/src/lib.rs
@@ -12,12 +12,9 @@ pub mod reaction;
 pub mod set;
 pub mod system;
 
-pub mod assert;
-pub mod bisimilarity;
 pub mod dot;
 pub mod frequency;
 pub mod graph;
-pub mod presets;
 pub mod serialize;
 pub mod transitions;
 
diff --git a/src/rsprocess/process.rs b/rsprocess/src/process.rs
similarity index 100%
rename from src/rsprocess/process.rs
rename to rsprocess/src/process.rs
diff --git a/src/rsprocess/reaction.rs b/rsprocess/src/reaction.rs
similarity index 100%
rename from src/rsprocess/reaction.rs
rename to rsprocess/src/reaction.rs
diff --git a/src/rsprocess/serialize.rs b/rsprocess/src/serialize.rs
similarity index 100%
rename from src/rsprocess/serialize.rs
rename to rsprocess/src/serialize.rs
diff --git a/src/rsprocess/set.rs b/rsprocess/src/set.rs
similarity index 100%
rename from src/rsprocess/set.rs
rename to rsprocess/src/set.rs
diff --git a/src/rsprocess/set_test.rs b/rsprocess/src/set_test.rs
similarity index 100%
rename from src/rsprocess/set_test.rs
rename to rsprocess/src/set_test.rs
diff --git a/src/rsprocess/system.rs b/rsprocess/src/system.rs
similarity index 100%
rename from src/rsprocess/system.rs
rename to rsprocess/src/system.rs
diff --git a/src/rsprocess/system_test.rs b/rsprocess/src/system_test.rs
similarity index 99%
rename from src/rsprocess/system_test.rs
rename to rsprocess/src/system_test.rs
index 204ff3f..61b9159 100644
--- a/src/rsprocess/system_test.rs
+++ b/rsprocess/src/system_test.rs
@@ -1,5 +1,5 @@
-use crate::rsprocess::set::PositiveSet;
-use crate::rsprocess::system::BasicSystem;
+use super::set::PositiveSet;
+use super::system::BasicSystem;
 
 #[test]
 fn one_transition() {
diff --git a/src/rsprocess/transitions.rs b/rsprocess/src/transitions.rs
similarity index 100%
rename from src/rsprocess/transitions.rs
rename to rsprocess/src/transitions.rs
diff --git a/src/rsprocess/translator.rs b/rsprocess/src/translator.rs
similarity index 100%
rename from src/rsprocess/translator.rs
rename to rsprocess/src/translator.rs