diff --git a/.gitignore b/.gitignore
index 6533575..b5cc3b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -176,3 +176,5 @@ dist
 .vscode
 *.diff.png
 .aider*
+
+*.old.ts
\ No newline at end of file
diff --git a/lib/utils/range.ts b/lib/utils/range.ts
new file mode 100644
index 0000000..9250334
--- /dev/null
+++ b/lib/utils/range.ts
@@ -0,0 +1,8 @@
+// same signature as lodash.range
+export const range = (start: number, end: number, step = 1) => {
+  const result: number[] = []
+  for (let i = start; i < end; i += step) {
+    result.push(i)
+  }
+  return result
+}
diff --git a/lib/utils/schematic/get-port-position.ts b/lib/utils/schematic/get-port-position.ts
new file mode 100644
index 0000000..e91bd11
--- /dev/null
+++ b/lib/utils/schematic/get-port-position.ts
@@ -0,0 +1,260 @@
+import { range } from "lib/utils/range"
+
+export type VerticalPortSideConfiguration = {
+  pin_definition_direction?: "top-to-bottom" | "bottom-to-top"
+  pins: number[]
+}
+export type HorizontalPortSideConfiguration = {
+  pin_definition_direction?: "left-to-right" | "right-to-left"
+  pins: number[]
+}
+
+export type ExplicitPinMappingArrangement = {
+  left_side?: VerticalPortSideConfiguration
+  right_side?: VerticalPortSideConfiguration
+  top_side?: HorizontalPortSideConfiguration
+  bottom_side?: HorizontalPortSideConfiguration
+}
+export type SideSizes = {
+  left_size?: number
+  right_size?: number
+  top_size?: number
+  bottom_size?: number
+}
+
+export type PortArrangement = SideSizes | ExplicitPinMappingArrangement
+
+export type ExtendedPortArrangement = PortArrangement & {
+  pin_spacing?: number
+}
+
+export const hasExplicitPinMapping = (
+  pa: PortArrangement,
+): pa is ExplicitPinMappingArrangement => {
+  for (const side of ["left_side", "right_side", "top_side", "bottom_side"]) {
+    if (side in pa && typeof pa[side] === "number") {
+      throw new Error(
+        `A number was specified for "${side}", try using "${side.replace(
+          "side",
+          "size",
+        )}"`,
+      )
+    }
+  }
+  return (
+    "left_side" in pa ||
+    "right_side" in pa ||
+    "top_side" in pa ||
+    "bottom_side" in pa
+  )
+}
+
+export const getNormalToExplicitPinMapping = (
+  pa: ExplicitPinMappingArrangement,
+): number[] => {
+  const normal_to_explicit: number[] = [0]
+  const { left_side, right_side, top_side, bottom_side } = pa
+  for (const [side, normalDirection] of [
+    [left_side, "top-to-bottom"],
+    [bottom_side, "left-to-right"],
+    [right_side, "bottom-to-top"],
+    [top_side, "right-to-left"],
+  ] as const) {
+    if (side) {
+      const definedOrderNormal =
+        side.pin_definition_direction === undefined ||
+        side.pin_definition_direction === normalDirection
+
+      const definedPins = [...side.pins]
+      if (!definedOrderNormal) {
+        definedPins.reverse()
+      }
+      for (let i = 0; i < definedPins.length; i++) {
+        normal_to_explicit.push(definedPins[i])
+      }
+    }
+  }
+  return normal_to_explicit
+}
+
+export const getExplicitToNormalPinMapping = (
+  pa: ExplicitPinMappingArrangement,
+): number[] => {
+  const normal_to_explicit: number[] = getNormalToExplicitPinMapping(pa)
+  const explicit_to_normal: number[] = []
+  for (let i = 0; i < normal_to_explicit.length; i++) {
+    explicit_to_normal[normal_to_explicit[i]] = i
+  }
+  return explicit_to_normal
+}
+
+export const getSizeOfSidesFromPortArrangement = (
+  pa: PortArrangement,
+): {
+  left_size: number
+  right_size: number
+  top_size: number
+  bottom_size: number
+} => {
+  if (hasExplicitPinMapping(pa)) {
+    return {
+      left_size: pa.left_side?.pins.length ?? 0,
+      right_size: pa.right_side?.pins.length ?? 0,
+      top_size: pa.top_side?.pins.length ?? 0,
+      bottom_size: pa.bottom_side?.pins.length ?? 0,
+    }
+  }
+  const {
+    left_size = 0,
+    right_size = 0,
+    top_size = 0,
+    bottom_size = 0,
+  } = pa as any
+  return { left_size, right_size, top_size, bottom_size }
+}
+
+/**
+ * Minimum distance between two sides, e.g. if there is only a left_size and
+ * right_size provided (only pins on left and right) then the minimum distance
+ * is the x distance between the left and right ports.
+ */
+const MIN_SIDE_DIST = 1.5
+
+/**
+ * Distance between ports on the same side
+ */
+export const DEFAULT_PIN_SPACING = 0.5
+
+/**
+ * These are all the defined port indices, for regular bugs all ports are
+ * defined but some bugs have a lot of unused pins, so there will be skipped
+ * ports.
+ */
+export const getPortIndices = (pa: PortArrangement): number[] => {
+  if (hasExplicitPinMapping(pa)) {
+    const port_indices: number[] = []
+    for (const p of [
+      ...(pa.left_side?.pins ?? []),
+      ...(pa.bottom_side?.pins ?? []),
+      ...(pa.right_side?.pins ?? []),
+      ...(pa.top_side?.pins ?? []),
+    ]) {
+      port_indices.push(p)
+    }
+    return port_indices
+  }
+  const { left_size, right_size, top_size, bottom_size } =
+    getSizeOfSidesFromPortArrangement(pa)
+
+  return _.range(1, left_size + right_size + top_size + bottom_size + 1)
+}
+
+export const getPortArrangementSize = (
+  port_arrangement: ExtendedPortArrangement,
+): { width: number; height: number; total_ports: number } => {
+  const pinSpacing = port_arrangement.pin_spacing ?? DEFAULT_PIN_SPACING
+  const {
+    top_size = 0,
+    right_size = 0,
+    bottom_size = 0,
+    left_size = 0,
+  } = getSizeOfSidesFromPortArrangement(port_arrangement)
+
+  const total_ports = top_size + right_size + bottom_size + left_size
+
+  const width = Math.max(
+    // MIN_SIDE_DIST is multiplied by the ratio of pin spacing to create more
+    // square-like bugs
+    MIN_SIDE_DIST * (pinSpacing / DEFAULT_PIN_SPACING),
+    (top_size + 1) * pinSpacing,
+    (bottom_size + 1) * pinSpacing,
+  )
+  const height = Math.max(
+    MIN_SIDE_DIST,
+    (left_size + 1) * pinSpacing,
+    (right_size + 1) * pinSpacing,
+  )
+  return { width, height, total_ports }
+}
+
+/**
+ * Get the position of a port given a port arrangement. The position corresponds
+ * to the index of the port if you travel counter-clockwise starting from the
+ * top-left and traveling down the left side. The index begins with 1.
+ */
+export const getPortPosition = (
+  port_arrangement: ExtendedPortArrangement,
+  position: number,
+): {
+  x: number
+  y: number
+  side: "top" | "bottom" | "left" | "right"
+} => {
+  const pin_spacing = port_arrangement.pin_spacing ?? DEFAULT_PIN_SPACING
+  const {
+    top_size = 0,
+    right_size = 0,
+    bottom_size = 0,
+    left_size = 0,
+  } = getSizeOfSidesFromPortArrangement(port_arrangement)
+  const total = top_size + right_size + bottom_size + left_size
+  const port_indices = getPortIndices(port_arrangement)
+  if (!port_indices.includes(position)) {
+    throw new Error(
+      `Invalid position ${position} on port arrangement with available ports: ${port_indices.join(
+        " ",
+      )}`,
+    )
+  }
+
+  if (hasExplicitPinMapping(port_arrangement)) {
+    // Map position to equivalent position in a normal port mapping
+    const og_p = position
+    position = getExplicitToNormalPinMapping(port_arrangement)[position]
+    // console.log("original position:", og_p, "mapped to:", position)
+  }
+
+  let side: "top" | "bottom" | "left" | "right"
+  let index: number
+  if (position <= left_size) {
+    side = "left"
+    index = position - 1
+  } else if (position <= bottom_size + left_size) {
+    side = "bottom"
+    index = position - left_size - 1
+  } else if (position <= bottom_size + left_size + right_size) {
+    side = "right"
+    index = position - left_size - bottom_size - 1
+  } else {
+    side = "top"
+    index = position - left_size - bottom_size - right_size - 1
+  }
+
+  const { width, height } = getPortArrangementSize(port_arrangement)
+
+  let x: number
+  let y: number
+  if (side === "top") {
+    const i_dist_center = index - (top_size - 1) / 2
+    x = i_dist_center * pin_spacing
+    y = height / 2
+  } else if (side === "bottom") {
+    const i_dist_center = index - (bottom_size - 1) / 2
+    x = i_dist_center * pin_spacing
+    y = -height / 2
+  } else if (side === "left") {
+    const i_dist_center = -index + (left_size - 1) / 2
+    y = i_dist_center * pin_spacing
+    x = -width / 2
+  } else if (side === "right") {
+    const i_dist_center = index - (right_size - 1) / 2
+    y = i_dist_center * pin_spacing
+    x = width / 2
+  } else {
+    throw new Error(`Invalid side "${side}", can't set x/y values`)
+  }
+
+  return { x, y, side }
+}
+
+export default getPortPosition